30．When you finish your work, don’t forget to put the tools back where they ________．
#103889
A
are
B
will be
C
were
D
had been
推荐题目
Many scientists believe sea levels ______ by more than one meter by the end of the 21st century.
#100381
A
will be risen
B
will have risen
C
will have been
D
will be rising
—Did you know more about the mine accident?—Oh, sorry, I had no idea. I ____the Rescue Center now.
#104443
A
will be phoning
B
am to phone
C
will phone
D
phone
It is said that they __ $ 200, 000 for the house up to now.
#101981
A
will offer
B
are offering
C
offer
D
have offered
Measures have been taken to prevent the accidents, but much _____ for more improvement.
#101771
A
remains to be done
B
is remained to do
C
remains to do
D
is remaining to be done
Traveling is a good way to different cultures and broaden the mind.
#101052
A
expand
B
explore
C
expose
D
export