-- nice day it is today! Let’s go out to play, shall we? -- That’s a good idea. A. How a ——青夏教育精英家教网——

-- _____ nice day it is today! Let’s go out to play, shall we?
-- That’s a good idea.
A. How a B. What a C. How

– It’s an exciting movie. I’ve just seen it.
-- _____.
A. So do I B. So I have C. So have I

– Do you know _____ this time yesterday?
-- Sorry, I don’t know.
A. what she is doing B. what was she doing C. what she was doing

_____ he was only twelve, he could run faster than any kids in the school.
A. Though B. Because C. If

– Do you know who cleaned the blackboard, Tina?
-- Yes. John _____.
A. do B. does C. did

The people _____ helped us build our hometown are from Beijing.
A. which B. whom C. who

Speak aloud, please! I can _____ hear you.
A. almost B. hardly C. usually

下列叙述中不正确的是

A．在单克隆抗体上连接抗癌药物制成生物导弹，既可以消灭癌细胞，又不伤害健康细胞

B．利用植物组织培养技术得到的植株，所产生的变异来源于基因突变、基因重组和染色体
变异

C．目前使用的或冷冻保存的正常细胞通常为10代以内的细胞

D．动物细胞在传代至50代后能继续传代的细胞获得了不死性

The final exam is coming. Our teachers tell us _____ time.
A. not to waste B. not waste C. don’t waste

If you _____ your homework, you can go out to play football.
A. finish B. will finish C. are finishing

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