欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

19.   Our math teacher is really     (understand). We all like him very much.

18.   ―Who helped Eric make the model plane?
―Nobody. He made it by     (he).

17.   She was afraid     (walk) alone at night.

16.   My  cousin was  careless  and  he  made many    (mistake) in the exam.

15.   - Why did you t     him? Because he did lots of things for us.

14.   There are many things to do for the trip, but I think the first s     is to make a plan.

13.   ―How do you often s     your problems?

―I often ask my friends for help.

12.   Problems and worries are n     in life.

11.     There was no money in his w      ， so he didn't buy anything.

(   ) 10. Most of us thought Alice couldn't do the job well because she had little     .
A. temperature      B. experience C. difference      D. discussion