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. If only I ________ how to operate an electronic computer as you do.
#89384
A
had known
B
would know
C
should know
D
knew
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Tom’s boss told Tome that if he worked hard, he _____ have a rise.
#87797
A
may
B
ought to
C
can
D
shall
Something ___ to save our earth. Do you think so?
#88938
A
can do
B
must do
C
has to do
D
must be done
The doctor from Shanghai recommended that the patient ___________.
#87329
A
is not operated
B
should operate on
C
not be operated on
D
was not operated
“Must we do it now?” “No, you _____.”
#90194
A
won’t
B
needn’t
C
can’t
D
don’t
Mr. Brown, a good friend of mine, __________ us but that he was short of money at the time.
#89710
A
would help
B
would have helped
C
had helped
D
helped