—You didn’t wait for Mr. Black last night, did you?  —No, but we ____. He didn’t return home at all. 
#89202
A
couldn’t have
B
needn’t have
C
didn’t need to
D
should wait have
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You ___ me, but since you have,I’ll keep it secret from others.
#89047
A
needn’t have told
B
didn't need to tell
C
wouldn't have told
D
couldn't have told
When a pencil is partly in a glass of water, it looks as if ____. 
#89905
A
breaks
B
has broken
C
were broken
D
had been broken