C．extension D．combination

　　解析：选A。考查名词辨析。句意：越来越多的人选择到超市买东西，因为它提供各式各样的商品。variety "多样"；mixture "混合物"；extension "扩展"；combination "合并，结合"。根据句意知，答案为A。

　　3．-Remember ________ we met, John?

　　-Of course I do. You ________ an English novel in the library.

　　A．for the first time; read

　　B．first time; had read

　　C．the first time; were reading

　　D．by the first time; read

　　解析：选C。the first time 意为"第一次......的时候"。其中"the first time"中的"the"不能省略，也不能加介词 for; 表示过去某个时间正在进行的动作，用过去进行时，即第二空用 were reading (表示当时见面时的动作)。

　　4．-Is he said ________ his car lost?

　　-Yes. He was so foolish ________ leave his car ________.

　　A．that; that; unlock

　　B．to have had; as to; unlocked

　　C．to have; to; unlock

　　D．to have; for him to; unlocked

　　解析：选B。sb. is said to do sth. "据说某人做某事"，它是 It is said that sb. do sth. 的变体。so ...as to ..."如此......以致......"；而 leave sth. done 表示"使某物被......"，它们之间为被动的关系。

　　5．-This doesn't ________ me. Do you have a larger one?

　　-Sorry, but the colour is different. Does it ________ you?

　　A．fit; suit B．suit; fit

　　C．fit; fit D．suit; suit

　　解析：选A。考查近义词辨析。fit 作及物动词，后常接某人，表示大小适合某人；作不及物动词，强调"吻合"；作形容词，则须用 be fit for 结构。suit 强调"(款式、颜色等)合适"。故选A。

6．(2012·安徽高考)Whatever is left over may be put into the refrigerator, ______ it will keep for two or three weeks.