— Why do you do volunteer work in the North-West?— I_______ to improve the lives of the children there through my efforts.
#105303
A
was trying
B
have tried
C
am trying
D
tried
推荐题目
6.I have to go to work by taxi because my car ____at the garage.
#105344
A
will be repaired
B
is repaired
C
is being repaired
D
has been repaired
— Why do you do volunteer work in the North-West?— I_______ to improve the lives of the children there through my efforts.
#105303
A
was trying
B
have tried
C
am trying
D
tried
—Joan，what ________ in your hand?—Look！It's a birthday gift for my grandma.
#105314
A
had you held
B
are you holding
C
do you hold
D
will you hold
New medicines and instruments ______ every day to extend life.
#105334
A
develop
B
are being developed
C
are developing
D
have developed