Two tickets to Guilin, please.–Only one ticket left. Would you like _______

My grandfather is over seventy years old. He is very well because he always_______ .

The board considered it urgent that those files _____right away.

I am _______ about what I say because careless remarks are likely to hurt others’ feelings.

Was it in April, 1970 ________ China succeeded ________ sending its first satellite into space?-Yes, that’s right.[ ]