________ many times , he finally understood it.
#99000
A
Told
B
Telling
C
Having told
D
Having been told
推荐题目
---Do you think he will do me a favor?---As far as I know, he is the last one ___ others. He ___ be prepared to give you a hand, though.
#95071
A
to help, might
B
helping, must
C
to help , can
D
helping, should
Sandstorms in Asia seem _____ in recent years as a result of desertification.
#93442
A
to increase
B
to have increased
C
having increased
D
increasing
In the earthquake, parents were willing to do they could their children.
#95320
A
whatever；save
B
whatever；to save
C
what；saving
D
what；to save
Whenever you are in trouble ,don’t hesitate _____us for help.
#97746
A
in asking
B
with asking
C
to ask
D
to asking
Has all that ____ without delay ____ yet?
#98988
A
can do…being done
B
done…been done
C
ought to be done…to do
D
should be done…been done