1， Andrew won the first place in the
physics competition.
_____? I am not interestd in science at
all, anyway.

A what’s up B So that
C What if D How come

2 This returned scholar has become one of the
top experts in this filed.
Yes,I know him xery well. He_____for ten
years at an institute in the USA.
A has worked B has been working
C worked D had worked

3 Last month I traveled across _____　desert
by camel with some locals, _____ amazing
experience I will never forget.
A a;the B the;an Cthe;不填 D a;不填

说明一下为什么， 最好能翻译一下，谢谢。

1， Andrew won the first place in the
physics competition.
_____? I am not interestd in science at
all, anyway.
A what’s up B So what
C What if D How come
答案：B
译文：---安德鲁在物理竞赛中得了第一名。
--那有如何？ 无论怎么说，我对自然科学都不感兴趣。
解析：凭着我的判断你的选项中B一定存在问题，所以擅自帮你把答案So that ---So what ，这表示一种很不在乎的态度，从后面可以猜出所缺的选项。其他几项不符合要求。A what’s up 怎么了？ C What if倘若那样将又如何呢？ D How come 怎么可能？



2 This returned scholar has become one of the
top experts in this filed.
Yes,I know him xery well. He_____for ten
years at an institute in the USA.
A has worked B has been working
C worked D had worked
答案：B
译文：---这位归国学者成了这个领域的一名杰出的专家。
--哦，我非常了解他。 他这十年来一直在美国的一所学院里工作。
解析：表示从过去开始一直持续到现在现在还在继续，所以用现在完成进行时。


3 Last month I traveled across _____　desert
by camel with some locals, _____ amazing
experience I will never forget.
A a;the B the;an Cthe;不填 D a;不填
答案：B
译文：上个月我骑着骆驼和着几个当地人一起穿越沙漠，这是一次我永生难忘的经历。
解析：前面是特指所以用定冠词the，后面是泛指--这次穿越沙漠的旅行，所以用不定冠词an。