1．—Oh，it’s you！I didn’t________ you.
—We haven’t seen each other for several years. Glad to meet you again.
A．realize B．recognize C．know D．see
2．We can’t give up________ we should fail 10 times.
A．even if B．since C．whether D．until
3. — Can you give me some advice on learning English? — ________.
A. Exactly B. No problem C. No way D.I don’t think so
4.— Let’s go for a walk outdoors. — _______, but I need to pack up my clothes.
A. No, thank you B. Good idea C. I’m afraid not D. Not at all
5. It is important to keep ______ in an emergency (紧急情况).
A. quiet B. silent C. calm D. still
6. ______ get a better score, she learns English hard all day.
A. So as to B. In order to C. So that D. In order that
