“Do you have any clothes _____ today?” the maid asked.
A. to wash
B. washing
C. washed
D. to be washed
查看答案
There are children ______ and a big house _______.
A. to look after…to take care
B. to look…to take care of
C. to look after…to take care of
D. look after…take care of
You’ll want two trees about ten feet apart, from ________ to suspend your tent.
A. when
B. then
C. there
D. which
I’m sorry _________ you waiting so long.
A. to have kept
B. to be keeping
C. to keep
D. to have been kept
I planned ________ the problem, but failed to do so.
A. to solve
B. solving
C. to have solved
D. solve
微信支付 
支付宝支付