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
___ she’s only a beginner of English, she’s speaking quite well.
#96958
A
Looking
B
Considering
C
Expecting
D
Considered
Arriving home tired, he had his wife ____ the dinner for him.
#94198
A
cook
B
cooked
C
to be cooked
D
to cook
he food ______ us can last a year or so. 
#97861
A
supplied
B
supplying to 
C
provided for
D
provided with