8. They had a party_______ Christmas Eve.
A. at B. in C. on D. during
答：C。见第2题解析。
9. Let’s walk over _______ the sun on the other side of the street.
A. in B. to C. under D. by
答：B。walk to走到……。此句意为“我们到街道那边有阳光的地方去。”
10. They have been building the new car factory_______ the end of last year.
A. by B. at C. in D. since
答：D。通过题中谓语的时态可排除A项和B项。
11. The Wangs live______ No. 50 Nanjlng Road.
A. in B. at C. on D. with
答：B。表示住在哪条街(路)用on，若具体到哪条街(路)的门牌号用at。
12. Look! He is coming ________ our direction.
A. to B. in C. for D. at
答：B。表示沿着哪个方向用in。
13. Mary was disappointed when she found out they had gone to the ball _______ her.
A. except B. except for
C. without D. besides
答：C。without 没有(没带她去)
14. ___________the rise in prices, life is getting harder.
A. On B. As C. With D. For
答：C。“with+名问十介词短语”是固定句式。as为连词，应接从句。
15. _________Christmas, people usually give each other presents.
A. On B. In C. At D. With
答：C。表示“在圣诞节”用 at Christmas 或 on Chrismms Day.
16. ________ their arrival in Beijing, they were warmly welcomed.
A. On B. In C. At D. For
答：A。on表示“当……时”。如： On hearing the news, she felt very happy.
17. The mother felt very happy ________ her son’s success.
A. with B. in C. at D. on
答：C。at表示“听到……，看到……时”。如 He was very happy at these re-marks. 听到这席话他十分高兴。
18. Sports and games can be_________ great help to us.
A. of B. having C. done D. in
答：A。be of+名同=be+形容词。如 The book is of great value / use / importance.= The hook is very valuable / useful / important.
19. Please write ______ ink. Don’t write_______ a pencil.
A. in, in B. with, with
C. with, in D. in, with
答：D。习惯上说inpen／Pencil／ink用钢笔(铅笔、墨水)，在pen／Pencil／ink／前不用冠词，为惯用法。若pen(pencil)前有冠词，表示具体的东西，应用with。如：with a pen／the pen／pens。