答案:无
答案:无
A. Never mind!
B. You are welcome.
C. Good idea!
D. Come on!
A. for
B. so
C. and
D. but
A. they are doing
B. are they doing
C. they were doing
D. were they doing
A. rooms number
B. room numbers
C. rooms numbers
D. room number
A. a/ the
B. the/ the
C. the /an
D. a/ an
A. writes
B. wrote
C. is written
D. was written
A. is going to have
B. is going to be
C. will have
D. are going to be