_______, she is the sort of woman to spread sunshine to people through her smile.

A. Shy and cautious　　　　　　　　　　 B. Sensitive and thoughtful

C. Honest and confident　　　　　　　　 D. Lighthearted and optimistic

--Will you join us in the game?

　 --Thank you, _________.

　 A. but why not? B. but I’d rather not.　 C. and I won’t　 D. and I’ll join.

—Why does she always ask you for help?

　　 一There is no one else _____ ，is there?

A．who to turn to　　　　　　　　　　　　 B．she can turn to

C．for whom to turn　　　　　　　　　　　 D．for her to turn

约翰. 斯诺能够肯定地宣布，这种污染了的水携带着病菌。

John Snow was able to ________ __________ _________ that _______ water carried the virus.

_____ I could judge, she spoke good English.

A. As far 　 B. As far so　 C. So far as 　 D. As farther as

I don’t know what would happen if we weren’t here to keep an eye___ your younger brother.

　 A. in　 B. at　 C. for　 D. on

Before using the more thing, you must______ carefully to these instruction.
  A join           B join in          C take part in       D attend