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 you’d better              your bad habits before you marry.
#82045
A
get on with 
B
get rid of
C
get back at
D
get in with
Seeing the stranger _______, the frightened baby couldn’t help ______ crying.
#67787
A
burst in; bursting into
B
burst into; burst out
C
break in; bursting out
D
burst into; burst out
1.    ! There is a train coming.
#84453
A
Look out
B
Look around
C
Look forward
D
Look on