The houses          . They will be finished next year.
#102266
A
are built
B
have been built
C
are being built
D
were built
推荐题目
―Twenty dollars, please!― How terrible!―I ________ to bring my wallet with me.
#104499
A
was forgetting
B
forgot
C
had forgotten
D
am forgetting
With the help of high technology, many new substances(物质)______in the past years.
#102927
A
discovered
B
have discovered
C
had been discovered
D
have been discovered
______ __ a reply, he decided to send another e-mail. 
#101796
A
Not receiving
B
Receiving not
C
Not having received
D
Having not received