It’s ten years since the scientist _______ on his life’s work of discovering the valuable chemical.
#83133
A
made for
B
set out
C
took off
D
turned up
推荐题目
I think of life as a good book．The further you get into it, the more it begins to _____.
#68475
A
make a difference
B
make a decision
C
make progress
D
make sense
America is an country. You can hear everywhere.
#74638
A
English-spoken, English speaking
B
English-speaking, English spoken
C
speaking-English, English spoken
D
spoken-English, English speaking
The operation room in every hospital has to ______ bacteria of any kind.
#68453
A
keep free from
B
make it free from
C
be made free from
D
be kept free from
More and more rich people have promised to ______ their wealth after death to help the poor and the disabled.
#68502
A
give away
B
give up
C
give out
D
give in
Many memories of old times were ______ by the conversation we had during the get-together.
#68737
A
called on
B
called in
C
called up
D
called for