Mr. Smith is busy these days ________ a new book on how to develop a child’s reading skill.
#96734
A
working out
B
working on
C
working for
D
working with
推荐题目
My father _______ for London tomorrow, for there is______ an  important meeting there.
#96576
A
is leaving ; to be
B
leave ; to be
C
is going to leave ; having
D
is leaving ; having
He told this to somebody else,not realizing that he ______.
#98145
A
didn't suppose
B
was not supposed
C
didn't suppose to
D
was not supposed to
________ with the size of the whole earth, the biggest ocean does not seem big at all.
#94271
A
Compare
B
When comparing
C
Comparing
D
When compared