10.He has been writing the composition the whole morning and he still _____.
A. has been
B. does
C. has
D. is
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11.If city noises ________ from increasing,people ________ shout to be heard even at the dinner table 20 years from now.
A. are not kept; will have to
B. are not kept; have to
C. do not keep; will have to
D. do not keep; have to
12.The price _______,but I doubt whether it will remain so.
A. went down
B. will go down
C. has gone down
D. was going down
13.—How long ____ each other before they ______ married?
A. or about a year.
B. have they known; get
C. did they know; get
D. do they know; are going to get
E. had they known; got
14.You can’t move in right now.The house ________.
A. has painted
B. is painted
C. is being painted
D. is painting