I don’t doubt_______ he took the first place in his class; but I do doubt_______ he will succeed in the end.
If you don’t study hard, you’ll regret, _____ you?
I thought _____ no use talking with him. _____ was a waste of time.
Every boy and every girl ________ pleased when they saw Shenzhou VI was sent up to space.
—How long have you been in this office? —Just a few minutes. My cousins__________here together with me.
—I would like to buy an expensive camera. —Well, we have several models_____.