Stop! You can never touch this machine when it ________, it is very dangerous.
#102729
A
has been operated
B
will be operated
C
is operated
D
is being operated
推荐题目
If city noises ___from increasing, people __ shout to be heard even at the dinner table 20 years from now.
#103976
A
are not kept; will have to
B
are not kept; have to
C
do not kept ; will have to
D
do not keep; have to
---- Mr. Smith is said to have retired and he is living in the country now. ---- Yes. He ________ in our factory for 35 years! What a good worker!
#100306
A
had been working
B
had worked
C
worked
D
have worked
I ____ Mr. White at that time, otherwise I wouldn’t have asked you for some information about him.
#101527
A
hadn’t known
B
don’t know
C
didn’t know
D
haven’t known
--- Will you attend the meeting this afternoon? --- But I told anything about it.
#103058
A
wasn’t
B
am not
C
haven’t been
D
won’t be
You should have put the milk into the icebox, I expect it ______ undrinkable.
#104860
A
became
B
had become
C
has become
D
becomes