How to control housing price is said to       a great challenge facing the government over the past few years.
#102735
A
become
B
becoming
C
have become
D
be becoming
推荐题目
After Jack had sent some e-mails, he _______ working on his project.
#102159
A
had started
B
has started
C
started
D
starts
Visitors ______ not to touch the exhibits. 
#105000
A
will request
B
request
C
are requesting
D
are requested
29. If city noises____from increasing, people___shout to be heard even at the dinner table 20 years from now.
#103910
A
are not kept; will have to  
B
are not kept; have to
C
do not kept; will have to  
D
do not kept; have to