I wondered what great difficulty he had ________ the plan.
#89809
A
to carry out
B
carrying out
C
carried out
D
with carrying out
推荐题目
We walked as fast as we could _____ to catch the train.
#98331
A
hoping
B
to hope
C
we hoped
D
being hoped
Rather than ______ on a crowded bus, he always prefers _______a bicycle.
#94021
A
ride; ride
B
riding; ride
C
ride; to ride
D
to ride; riding