The student told me that he _______ the exam _______.
#101041
A
has had; yesterday
B
had; the day before yesterday
C
had had; the day before
D
had had; yesterday
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—How did she get infected?  —She ____ the viruses without any protection.
#101750
A
exposed to
B
had exposed to
C
was exposed to
D
has exposed to
-Why does the Lake smell terrible? -Because large quantities of water       .  
#104968
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
 Mrs. Green wants to buy that kind of cloth because she___________ that the cloth__________ very well.
#104868
A
has been told; washes
B
is told; is washed
C
has been told; is washed
D
is told; is washed