My new pen __________.Who __________ have taken it?
#99071
A
has been disappeared; can
B
has disappeared; could
C
is missing; should
D
has been lost; may
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Look ,the apartment that is     there belongs to us.
#100113
A
built
B
build
C
being built
D
being build
The two boys_____ games on the computer for three hours, and they would continue till midnight 
#104829
A
were playing
B
had played
C
had been playing
D
has been chatting