You _________think you're clever, but that doesn't give you the right to order me about!
---Have you found your book yet? --- No, I’m not sure where I________it?
I want to buy that kind of cloth because I ________the cloth________well.
________it________to rain tomorrow , the sports meet would be put off until the same time next week.
Going on a trip________be expensive and difficult , so making a plan is necessary. A. must B. ought to C. shall D can
________, follow the directiom on the bottle carefully.