This kind of cakes ______ good while cakes of that kind ______ different.
A. taste; are
B. tastes; are
C. smells; is
D. look; are
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Every means ______ tried, but in vain.
A. have been
B. has been
C. are
D. is
Where to find the teacher and where to do the experiment ______.
A. are not known
B. is not known
C. has not known
D. have not known
—Where is our head teacher —He's left a ______ saying that he has something important to do.
A. news
B. message
C. excuse
D. sentence
Jim was late for two classes this morning. He said that he forgot both of the ______.
A. rooms number
B. room number
C. room's number
D. room numbers