Question

6. the police thought he was the most likely one,since they had no exact proof about it,they could not arrest him.

   A. Although   B. As long as

   C. If only   D. As soon as

Answer 1

6. A

6. A解析:句意:尽管警察认为他最有可 能，但是由于没有确切的证据，他们不能 逮捕他。

although表示让步，意为“尽 管”;as long as表示条件，意为“只要”；if only表示条件，意为“要是……就好了”；as soon as表示时间，意为“一就……”。