The house is dirty. It ______ for months.
A. hasn’t cleaned
B. didn’t clean
C. wasn’t cleaned
D. hasn’t been cleaned
查看答案
Everything on the earth ____ all the time.
A. is changed
B. is changing
C. has changed
D. has been changed
She does not possess a car; this one she uses _____ to Henry.
A. is belonged to
B. belonged
C. belongs
D. is belonging
The door ____ with difficulty.
A. is shutting
B. shuts
C. was shut
D. is shut
You ought to put the meat in the refry, but now _____ sour.
A. it is smelt
B. it is smelling
C. it smells
D. it will smell
微信支付 
支付宝支付