Since the recent river pollution in several provinces, people _______ more and more attention to the quality and safety of drinking water. 
#100455
A
pay
B
are paying
C
have paid
D
have been paying
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 I'll go to the library as soon as I finish what I        .
#101936
A
was doing
B
am doing
C
have done
D
had been doing
 —He       to the meeting. Have you informed him of it? —Sorry. I       to.
#104682
A
hasn’t come; am going
B
didn’t come; have forgotten
C
hasn’t come; forgot
D
doesn’t come; will have