Before you leave the lab, the doors and windows ____shut in case of rain.
#103452
A
is
B
are
C
is to be
D
are to be
推荐题目
The truck ran down the hill, and the driver _____, according to the local newspaper, to have been killed.
#101207
A
was reported
B
was reporting 
C
reported
D
had been reported
I got caught in the rain and my suit______. 
#102751
A
has ruined
B
had ruined
C
has been ruined
D
had been ruined
Amy insists that she ____ the secret to lose weight. But she won’t share it with us.
#101092
A
had discovered
B
discovers
C
has discovered
D
will discover