3)倍数＋名词
The sun is many times the size of the moon.
4)动词＋倍数
The pants have shortened two times since they were bought.
5)动词+by+数词/百分比/倍数
The landlord wanted to raise the rent by a third.
Between 1974 and 1997, the number of overseas visitors expanded
( )27%. (CET-4 2000,1)
A) by
B) for
C) to
D) in
本题考查动词+百分比的表达方法，正确的连接词为by，故答案为A.
