高三第一学期期中练习
第二部分：英语知识运用（共两节，满分45分）

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。
21．— Have you ever seen a tiger in the wild?
— Yes. I saw________ when I visited the national park in southern Nepal.
A．it B．one
C．that D．any
22．— Excuse me, are you going to buy _________ book?
— Well, I need it for ________ class but it’s too expensive.
A．the, a B．a, the
C．a, 不填 D．不填, the
23．— What do you think of my suggestion?
— Sorry. What’s that? I _______ about something else.
A．thought B．am thinking
C．was thinking D．had thought