Li Lei has not yet answered my question______I can go with him to________he calls the Natural Underground Gallery next week

__________ weather it is! We can’t go boating onthe Xuanwu Lake.—Don’t worry. Let’s go to the Science Museuminstead.

I prefer tea ______ coffee.

reserves are very important forpreserving many animals and plants, which would _______ run the risk ofbecoming extinct

Here is the milk for _____, Jack.. _____ can help you sleep better.