In many countries, some scientists are already _______ research in order to produce a cloned human baby.
#69051
A
putting up with
B
coming up with
C
putting forward
D
pushing ahead with
推荐题目
The boss has ________to improve the working conditions in the company.
#67411
A
allowed
B
accepted
C
permitted
D
agreed
my wife prefers _______ yoga ____ a good figure.
#84079
A
to do;to keep
B
doing; keeping
C
to do;keeping
D
doing;to keeping
In order to help her children with their lessons, the woman _______ to some magazines and newspapers last week, though she doesn’t make much money.
#72683
A
subscribed
B
adopted
C
drafted
D
adapted
It’s ten years since the scientist ____ on his life’s work of discovering the valuable chemical.
#65014
A
made for
B
set out
C
blocked out
D
turned up