基本信息
课时提升作业(二十九)
选修9 units 3、4
ⅰ. 单项填空
1. (2013·荆州模拟)the lucky fans will be picked> rather than chosen beforehand to perform with the singer during the concert.
a. by accident b. at random
c. on earth d. on average
2. after being trained for a month, i can read at the of 500 words a minute.
a. rank b. race c. rate d. rage
