It is strongly recommended that the machine_____________ every year.
#86995
A
are checked
B
should check
C
checked
D
be checked
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I think that's unlikely to happen, but if that_______, both America's and China's interest would be severely damaged.
#86812
A
should occur
B
occurs
C
had occurred
D
is going to occur
The washing machine is of excellent quality. If there __________ be any problem within the first three years, we would fix it for free.
#87028
A
could
B
might
C
shall
D
should
I didn’t find his office. If only I______his address!
#90228
A
remember
B
remembered
C
had remembered
D
would remember
The whole building _____ burned down, but the heavy rain _____.
#90075
A
might have; would help
B
could have been; helped
C
must have; helped
D
should have been; was helping
He _______ the best person you had been expecting for the job, but who else _______?
#87031
A
may not be; could be
B
couldn’t be; might be
C
might not have been; could have been
D
mustn’t be; must have been