1．(四川卷)You must be careful with the camera. It costs!
2．(陕西卷)You may feel all the training a waste of time, but I’m a hundred percent sure later you’ll be grateful you did it.
3．(2017·天津卷)—Do you have Betty’s phone number?
—Yes. Otherwise, I wouldn’t have been able to reach her yesterday.
4．(2019·湖南雅礼中学高二月考)The traffic is heavy these days. I might arrive a bit late, so could you save me a place?
5．I should have handed in my homework yesterday, but unfortunately I forgot about it totally.
6．You could have got (get) better grades in the last examination, but you were so careless.
7．(2019·江苏建陵中学高二期中)—Boss, we need to talk about it now!
—I’m busy. If you must talk about it with me, please wait till I finish my work at hand.
8．When he was there, he would go to that coffee shop at the corner after work every day.
9.According to the factory safety rules, all accidents shall be reported to the safety officer.
10．The train is to start soon and Mike hasn’t arrived. What can have happened to him?
