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
---How long has the meeting _______? --- Just a minute. I will check the time.
#56628
A
begun
B
started
C
been on
D
been begun
It is time for class. Let’s stop _______.
#55772
A
playing football
B
play football
C
from playing football
D
to play football
The number of books in the bookshop is about 10,000 and a number of them about science.
#61827
A
is
B
was
C
are
D
Were