根据各小题Ａ句的意思完成Ｂ句，使两句的意思基本相同。每空限填一个单词。
小题1:A: His friend didn't know what he should do.
B: His friend didn't know do.
小题2:A: What was wrong with the old man？
B: What the old man？
小题3:A: He found it was not easy to sleep.
B: He found to sleep.
小题4:A: He went to bed at twelve last night.
B: He go to bed twelve last night
小题5:A: She was worried and her friend was worried, too.
B: She was worried and her friend.
小题6:A: She always makes me happier when I’m unhappy.
B: She always me when I’m unhappy.
小题1:what to
小题2:happened to
小题3:it hard
小题4:didn’t until
小题5:so was
小题6:cheers up
试题解析:本文大意：
小题1:考查同义句。句意：他的朋友不知道他应该做什么。 what he should do可以转换成疑问词+ 不定式，故答案填what to .
小题2:考查同义句。句意：那个老人怎么了？be wrong with出问题了，happen to发生，根据was可知是一般过去时，故答案填happened to .
小题3:考查同义句。句意：他发现入睡不容易。 not easy不容易的 =hard困难的，做宾补；it代替不定式to sleep做形式宾语， 故答案填 it hard 。
小题4:考查同义句。句意：昨晚他十二点上床睡觉。根据语境可知是一直到12点才睡觉，not until直到……才，根据last night昨晚可知为一般过去时，故答案填didn’t until.
小题5:考查同义句。句意：他担心，他的朋友也担心。与前者情况相同可以用so倒装句，前句为系动词was,故答案填so was 。
小题6:考查同义句。句意：当我不高兴的时候，她总是令我更开心。make使，happy开心，cheer up使振作，根据makes可知为一般现在时，故答案填cheers up.