Question

Although it's raining hard, ______ are still playing football on the playground.

[　　]

A．they

B．but they

C．and they

D．so they

Answer 1

答案：A
解析：

本句是带让步状语从句的复合句，主句开头不能再用 but，这与汉语的表达法不同。此外 though 与 although 一样，都不能和 but 连用，但两者常可换用，although 较 though 正式，语气重些，且 although 多用于句首。