Every few years, the coal workers ___________ their lungs X-rayed to ensure their health.
#103745
A
are having
B
have
C
have had
D
had had
推荐题目
It’s said that there are plenty of hotels in Shanghai. There _____ be any difficulty for you to find somewhere to stay.
#103543
A
wouldn’t
B
shouldn’t
C
mustn’t
D
needn’t
My sister-in-law___________ my brother for ten years.
#102198
A
married with
B
has married
C
has been married with
D
has been married to
— Wow, your homework looks great!— I _______ it on my computer.
#101908
A
did
B
do
C
will do
D
had done
In the near future, more advances in the robot technology by scientists .
#102136
A
are making
B
are made
C
will make
D
will be made