--How did he get infected? --She ____the viruses without any protection.
#101629
A
exposed to
B
had exposed to
C
was exposed to
D
had been exposed
推荐题目
-----What’s that terrible noise? -----The neighbours ________ for a party.
#102452
A
have prepared.
B
are preparing.
C
was preparing.
D
will prepare.
I _________ Lucy to be careful with her handwriting all the time, but she hasn’t polished it at all.
#100557
A
told
B
have been telling
C
will be telling
D
have told
The rich shouldn't________their wealth. Instead, they should contribute more money to the poor.
#100691
A
show off
B
take off
C
put off
D
give off
The United States _______one of the lowest smoking rates －25.5 percent of the population.
#103540
A
is
B
have
C
has
D
are
Great changes in every field _____ in the last ten years.
#99202
A
take place
B
took place
C
have taken placed
D
had taken place