1. 4th LEVEL GRAMMAR REVISION – ANSWERS
1A Inversion; not only requires an auxiliary indicating the verb tense and followed
by the subject.
2A ‘Have to’ has to be followed by bare infinitives, as the particle to is part of the
semi-modal verb.
3C ‘Quite’ /kwait/ has two opposite meanings: to a particular degree, but not very
(as in ‘She was quite jealous of her younger sister’) or to a large degree, or very
much (I do think you’re quite wrong). When we use it in a sentence with rather,
it tends to mean ‘not much’, so rather conveys the stronger idea.
4C Question tags after an imperative sentence are expressed using a future
auxiliary verb.
5C Present Simple for habits and repeated actions; Order of frequency and some
other adverbs: before all one-word verbs, after the verb to be. If the verb is a
two or three-word tense, adverbs appear just after the main auxiliary (have
often worked, would usually have said)
6A Past simple for finished past actions that had no duration, interrupting
another action that was happening at the time.
7B Present perfect continuous; used to express the idea of an activity in progress
until recently or until the time of speaking, especially if we can still see its
results.
8B Present perfect simple, referring to an action that began in the past but may
continue in the present. Not stating if it is finished or not.
9B Future continuous refers to an action that will be happening at a concrete
moment in the future.
10D Future perfect: for actions that will be finished at a concrete moment in the
future.
11C ‘would’ is used for the past whenever we refer to habitual actions which were
repeated.
12C there was no necessity, past simple tense.
13C supposed is the only adjective that makes sense
14B managed to implies making an effort and getting to do something
15B Causative have, someone else did the action instead of us.
16C Past perfect after wish for action we would like to have been different in the
past, to express regret.
17D Third conditional: used to talk about hypothetical past situations with
reference to the present or future.
18B Unless is commonly used as the negative of if, to avoid using a negative verb
structure.
19B Provided: With the condition that
20D Final sentence; ‘so as not to’ introduces the possible negative effects we are
trying to avoid.
21B Reason clause stating the cause of a decision

2. 22C as tough/as if are used to convey the idea of an unreal comparison
23C whereas and however introduce concessive clauses, but however requires the
use of commas.
24A although is always followed by a whole personal clause (subject + verb)
25C ‘once’ has a future meaning in this sentence, even though it is used with a
present tense. ‘by the time’ would require a future verb tense
26D ‘Neither’ refers only to two people and has to be used with a positive verb. None
is similar but it does not specify so much the number of people
27B ‘every’ is undetermined for an non-concrete number of occasions; each has to
refer back to a concrete number.
28C Question tag for an imperative which is a proposal with ‘let’s’.
29B Saxon genitive
30B Must + perfect participle – modal of deduction
31B The noun coffee is uncountable but when modified by the adjective Brazilian it
is determined and known to the hearer/reader.
32C Correlative comparative: The + comparative form, the + comparative form.
33C ‘in which’ or ‘where’ would be the only possibilities for this defining relative
clause.
34C Subject relative clause
35A The verb remember can be followed by infinitive or gerund. If you remember
something after having done it, use gerund.
36B get used to, be used to, become used to + gerund
37C (would rather + infinitive) or (would rather + object + past tense)
38A The verbs of liking in conditional tenses take a to-infinitive.
39B Try + gerund: doing an activity to see what happens.
40B After some time adverbs, expressions and prepositions we use the present
simple even though we refer to the future – when, if, as soon as, while, after,
before.
41D After the verbs let and make we use a bare infinitive
42C When predicting conditions for the future, we use ‘in case’, not if. All the other
possibilities make no sense.
43B Present continuous passive
44C to be said to + infinitive/perfect infinitive
45C In a condition similar to a slave