At the computer operation test, one is supposed to stay at his own machine, keep his eyes on his screen, ______ to anyone.
-I heard Back Street would sing at the New Theater. -Where did you _____?
-Are you satisfied with her answer? -Not at all. It couldn’t have been _____.
. -What do you think of the book? -Oh, excellent. It is worth _____ second time.
The three college students did what they could _____ the two children, although they was in danger.
-Have you got your test result? -Not yet. The papers _____.