【题目】________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
在线课程【答案】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。表示让步应用although。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……”。