He pretended not to care but that remark _________ hisreal opinion on the matter.

Why are you packing so many books—I’ll _______ to the kids in West China.

If we just think about _____，the boat of friendship will be overturned anytime.

believe that the project, if _______ according to plan, will definitely work out well.

______ your sister ______ in Greener China for a long time—Yes.She joined it five years ago.