--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
You type almost anything, however unclear, into the space provided on Google and in a second it __________ thousands of references.
#99324
A
catches up with
B
comes up with
C
ends up with
D
puts up with
They _________ on the program for almost one week before I joined them, and now we are still working on it as no good results have come out so far.
#103812
A
have worked
B
had worked
C
have been working
D
had been working
The town’s drinking-water _____ with prim chemicals at present.
#104183
A
contaminates
B
is contaminated
C
is being contaminated
D
has been contaminated
--We ________ that you would fix the TV set for us.--I’m sorry, but I was too busy, so I ________.
#102801
A
had expected; had fixed it
B
expected; fixed it
C
had expected; had it fixed
D
expect; fix it
Susan decided not to work on the program at home because she didn’t want her parents to know what she_____.
#99291
A
has done
B
had done
C
was doing
D
is doing