We'll never give up_______ on the project no matter how difficult it is.
A. work B. to work
C. working D. worked
--Why do you look worried?
--I’m looking for my pet dog but I can’t find it______.
A. somewhere B. anywhere
C. everywhere D. nowhere
―What were you doing when the light went off?
―I____________ with my sister on the phone.
A. talk B. talked
C. am talking D. was talking
—What did the teacher say?
—The teacher told us at the Capital Museum on time.
A. arrive B. arrived
C. arriving D. to arrive
The young girl sings as as the singer.
A.good B.well
C.better D.best
The girl was flying a kite________her father came back．
A．when B．while
C．until D．after
