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1．—Who are making so much noise in the garden? —________the children. A. It is B. They are C. That is D. There are 解析 强调句型 It is the children who are making so much noise 之省略。 答案 A 2. It is________he often fails in exams________makes his parents worried about him. A. what; that B. that; what C. that; that D. / ; that 解析 为强调句型，被强调成分为主语从句 that he often fails in exams。 答案 C 3. It is the protection for the trees________really matters, rather than how many trees are planted. A. what B. that C. 不填 D. which 解析 为强调句型，句意为“真正重要的在于保护树，而不在于种多少树”。 答案 B 4. It is________my father worked________I work now. A. where, that B. where, when C. that, where D. that, that 解析 整个句子为 it was... that...格式的强调句式，即第二空要填that；第一空填where，where my father worked 为地点状语从句，为强调句的被强调部分。句意为“我现在在我父亲曾经工作过的地方工作”。 | 
