—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
You can trust him because he always ________.
#11712
A
keeps his words
B
stick to his promise
C
keeps his word
D
keep his promise
China has produced       this year as it did in 1996.
#14521
A
as much steel twice
B
as twice much steel
C
twice steel as much
D
twice as much steel