New medicines and instruments ______ every day to extend life.
#105334
A
develop
B
are being developed
C
are developing
D
have developed
推荐题目
With more forests being destroyed, huge quantities of good earth ______ each year.
#105331
A
is washing away
B
is being washed away
C
are washing away
D
are being washed away
6.I have to go to work by taxi because my car ____at the garage. 
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A
will be repaired
B
is repaired
C
is being repaired
D
has been repaired