Every few years, the coal workers their lungs X-rayed to ensure their health.
#102390
A
are having
B
have
C
have had
D
had had
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When we got there after the accident，we were told that the injured to the nearest hospital.
#101256
A
were sent
B
had been sent
C
have been sent
D
are sending
Tom as well as two of his friends ______ to the concert last night.
#104342
A
has been invited
B
had been invited
C
were invited
D
was invited
Father _____for London on business upon my arrival, so I didn’t see him.
#99289
A
has left
B
left
C
was leaving
D
had left
By the time he realizes he into a trap, it’ll be too late for him to do anything about it.
#103233
A
walks
B
walked
C
has walked
D
had walked
When I got home, I _____ I had left my wallet in the taxi
#102177
A
was realizing
B
realized
C
have realized
D
would realize