Scientists in some countries have done a lot of work to _____ the moon.
#64452
A
cover
B
search
C
explode
D
explore
推荐题目
There has been__________ accidents on this part of road.
#66197
A
a number of
B
the number of
C
a series of
D
plenty of
Chemical processes _______in the treatment of materials for clothes _______the environment badly in some countries nowadays．
#76632
A
involve；damaging
B
involved；damaged
C
involving；damage
D
involved；damage
The writer her children so that she could concentrate on her writing, because they are too noisy．
#72238
A
sent out
B
sent for
C
send up
D
send away
—I haven’t heard from Henry for a long time.—What do you suppose____ to him?
#71442
A
was happening
B
to happen
C
had happened
D
has happened
The girl a scream of pain when the doctor pressed her stomach.
#68373
A
took out
B
made out
C
carried out
D
let out