Question

You will be required to _________ Mrs．Smith in preparing a report．

1. A.
   assist
2. B.
   help
3. C.
   offer
4. D.
   afford

Answer 1

A
解析：
只有assist可构成assist sb．in doing sth．；
help常构成help sb．(to)do sth．; help sb．with sth．; offer提供；
afford(在时间或金钱方面)支付得起做某事。句意：你将要协助史密斯夫人准备一份报告。