Unit 4 Learning efficiently Period 3 Grammar & Writing 课时精练（人教版选修10，课标通用）
Ⅰ.用所给动词的适当形式填空
1．I'd rather you ________ (come)tomorrow.
2．If only he ________ (be)alive.
3．We should act as if she ____________ (watch)us.
4．I couldn't help even though I ____________ (be)
there at the moment.
5．If I ____________(inform)yesterday，I ________ (know)what to do now.
答案 1.came 2.were 3.were watching 4.had been 5.had been informed；should know
