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
推荐题目
The vegetables in his field ________ well, because they are pollutionfree.
#99491
A
are selling
B
have been sold
C
are sold
D
sell
At 4:00 next Friday, I ________TV in my room.
#103609
A
will watch
B
will be watching
C
will have watched
D
will been watching
I had meant to meet you at the airport this morning, but I was too busy for I_______ a report.
#100705
A
wrote
B
have written
C
was writing
D
had written