--Why does the lake smell terrible? -- Because a large amount of water_______.
#99621
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
推荐题目
—Look, where are you going!—Sorry, I _______.
#100564
A
wasn’t noticing
B
didn’t notice
C
haven’t noticed
D
am not noticing
–Ann is in hospital. ---Oh, really? I _____ know ,I ____ go and visit her.
#103116
A
didn’t ;am going to
B
don’t ;would
C
don’t; will
D
didn’t ;will