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
---- Look! Everything here is under construction. ---- What’s the pretty small house that ____________ for?
#101031
A
is being built
B
has been built
C
is built
D
is building
--- Mum, where are my gloves? Is the pair of gloves ______ mine?--- Yes. You have to wear another pair.
#100870
A
washing
B
have washed
C
having washed
D
being washed
The elderly _________ good care of in public places like supermarkets and airports; they are likely to get lost.
#102324
A
can have been taken
B
ought to be taking
C
must be taken
D
should take
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