I want to become a famous ballet dancer.– _________________ .You are too lazy!

It remains unknown _____the peace talk between the two countries is going to lead.

he sees people in trouble，he always gives them a hand．

Make a tentative guess _____ Peking Man_____ have done and used thousands of years ago

The old man put his oars (船桨) in the water and _____ the smooth surface of the lake. [ ]