Ann is a careful girl．She always goes over her exercises to ____ here are no mistakes．
#56144
A
look for
B
make sure
C
find out
D
think about
推荐题目
I __________ a gift yesterday, but I didn't ________ it.
#59170
A
received, accept
B
received, accepted
C
accepted, receive
D
accepted, accept
Pollution is a serious problem. Scientists have _____ some good ways to save it.
#54132
A
come up with
B
come on
C
come out
D
come up
The team will fly to Los Angeles. Now there are many things _______.
#52498
A
do
B
to do
C
doing
D
done
The world of Dinosaurs is an amazing film which brings dinosaurs ________ on screen.
#56638
A
live
B
lively
C
alive
D
living