-—David has gone to Australia on business.—Really? I ______ why he was absent from today’s meeting.
#101832
A
am wondering
B
wonder
C
was wondering
D
had wondered
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We don’t know if she _____ home. If she ____, I’ll tell you.
#102315
A
comes; will come
B
will come; will come
C
comes; comes
D
will come; comes
Experiments of this kind ___in both the U．S and Europe well before the Second World War．
#100251
A
had conducted
B
have conducted
C
have been conducted
D
had been conducted
---- Do you know our town at all?----No, this ________ the first time I _________ here.
#103070
A
was; has come
B
is; come
C
is; had come
D
is; have come
— What do you think of this kind of TV set, which ＿＿ in Shanghai? — Well, I don’t care such things.
#104415
A
was made
B
is made
C
has been made
D
had been made