Question

— Were you worried about him last night?
　　　　— Yes. It was ________.

A．until he returned that I went to bed

B．until be returned that l slept well

C．not until he returned that I went to bed

D．not until did he return that I went to sleep

Answer 1

　　　C　

此處強(qiáng)調(diào)句型，強(qiáng)調(diào)是until從句，如復(fù)原應(yīng)為I didn't go to bed until he returned.這個(gè)句型變?yōu)閺?qiáng)調(diào)句型應(yīng)注意，主句中的not在強(qiáng)調(diào)句中移至until之前。