1.I can’t (集中) on my work when I’m tired.
答案:concentrate
2.Now that you are a college student, you should learn to be (独立的) of your parents’ help.
答案:independent
3.It is a (不利因素) not to be able to drive a car.
答案:disadvantage
4.The (平均的) age of the students in my son’s class is 12.
答案:average
5.My dress is too long and I must (截短) it.
答案:shorten
6.We were trained to speak fluently and without unnecessary (犹豫).
答案:hesitations
7.I think she was also not sure about it because she made no (确定的) answer.
答案:definite
8.Politicians love using (统计数字) to support their argument.
答案:statistics
9.If you would move (横着地) to the left,I can get everyone in the picture.
答案:sideways
10.I try to keep (经常的) contact with my friends.