This document contains an English exercise for 4th grade students with two parts. The first part asks students to fill in blanks with correct words to complete if-clauses. The second part asks students to choose the correct alternative to complete sentences using if-clauses. The exercise is intended to help students practice using if-clauses in sentences to form conditional statements. It provides 10 questions for each part to help students reinforce their understanding of using if-clauses to express conditions.