-----They used to be good friends, but now they are like strangers. ----- How _____ this ______?
#104151
A
were; come about
B
did; come about
C
were; taken place
D
were; happened
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The computer looks old, but it _________ just half a year ago. 
#103884
A
has been bought
B
was bought
C
is bought
D
will be bought
The teacher told me that the light ______ faster than sound.
#101709
A
travels
B
had traveled
C
is traveling
D
traveled
A new cinema __________ here. They hope to finish it next month.
#101120
A
will be built
B
is built
C
has been builk
D
is being built