Here are some completed sentences: grammar and vocabulary but also develop their
speaking skills. (as well as)
a A knife has the function of cutting food so that we
can eat. A good language course should teach students
grammar and vocabulary as well as develop their
speaking skills so that they can communicate effectively.
b An alarm clock serves the purpose of waking people
up in the morning so they are not late.
b You need to revise regularly and do plenty of
practice exercises. (and)
c Cars provide transportation so that we can travel from
place to place more easily. You need to revise regularly and do plenty of practice
exercises and test yourself regularly