When Nancy was at college, she ______ three foreign languages. But I am surprised to find that she ______ all except a few words of each.
#101433
A
spoke; had forgotten
B
had spoken; had forgotten
C
spoke; has forgotten
D
had spoken; has forgotten
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--How did she get infected? --She ________the virus without any protection.
#100265
A
exposed to
B
had been exposed to
C
had exposed to
D
was exposed to
 The pen      well, so it ___ well. 
#101517
A
is written, is sold
B
is writing, is selling
C
is written, sells
D
writes, sells