第一节:单项填空(共15小题;每小题1分,满分15分)
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
21. Anousheh Ansari, ________ Iranian-American
business woman, began her historic journey as ________ world’s first female
space tourist last year.
A. an ; 不填 B. 不填;the C.
the ; the
D. an ; the
We are living in ________ world where computers can
be found everywhere, so online
searches
have become ________ must.
A. the;不填 B. 不填; a C. a;
a
D. a; the