—What about the student in your class, Mr. Wang?—The doctor said that          sleep caused him poor memory and poor concentration.
#14177
A
lacking of
B
lacked in
C
lacking
D
lack for
推荐题目
.They want to employ 90 people, __________last year.
#14463
A
three times as many as
B
more than three times
C
as three times as
D
three times that they did
—Don’t be so naughty! Be your ________.—Got it,mum. 
#12336
A
manners
B
age
C
behavior
D
politeness