The scientist __________ the experiment for half a year, but he _______ yet.
#102041
A
made; didn’t succeed
B
made; hasn’t succeeded
C
was making; didn’t succeed
D
has been making; hasn’t succeeded
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— Why on earth didn’t you answer the door? — I’m terribly sorry, but the telephone _______, too.
#99983
A
is ringing
B
was ringing
C
rang
D
was about to ring
Would you please keep silent? The weather report ________ and I want to listen.
#100935
A
is broadcasted
B
is being broadcast
C
has been broadcasted
D
had been broadcast
----Have you learned English before ? ----Yes,I _____English for 6 years in my hometown .
#104584
A
learn
B
learned
C
am learning
D
have learned
The play had already been on for quite some time when we __________ at the New Theatre.
#104602
A
have arrived
B
arrived
C
had arrived
D
arrive
This is the third time I _______ Beijing. The second time I ______ here was on Christmas Day last year.
#103108
A
have visited; came
B
have visited; have come
C
visited; came
D
visited; have come