—You’d better ______ work too hard like this.—I see. You mean working too hard makes one tired and ill.
If you don’t study English all the time, you’ll have a difficult time ____ it in the future.
All the students went home after school _______ Linda, for the teacher said he had something to talk about with her.
Could you please tell me _______?
I found ________ difficult to work out the problem without a computer.
---I don’t know what _____ if I do that. ---I think you ______ tell him the whole thing first.