—What a nice classroom! —It _____ every day.
#44598
A
is cleaning
B
has cleaned
C
must clean
D
is cleaned
推荐题目
—Mary was heard_______ just now. What happened?—John was telling a joke.
#45050
A
cry
B
to cry
C
laugh
D
to laugh
—What happened to Billy?—He________because of his drink-driving.
#44936
A
is caught
B
was caught
C
has caught
D
had caught
A lot of money has been _________ helping the mountain villages all over China.
#45013
A
spent
B
use
C
cost
D
paid
—Hey, Jack. Waste paper mustn’t ________ here.—Sorry, I won’t do that again.
#44495
A
throw
B
be thrown
C
be throwing
D
to throw