----Who ________ is going to have a piano lesson? ----Nobody.
—Jackie Chan is a famous actor. —Yes, he is popular _______ many young people.
Then machine doesn’t work .I think it needs _____. A. to mend B. mended C.mending D mend
I feel tired, but I don’t want to stop _______.
I _______ 2 hours finishing my homework last weekend.
----Look at the boy running on the playground. Is it David? ---- It ______ be him. I saw him go to the teachers’ office just now.