I'm afraid that he ____ (lose) his keys.Look!He is standing outside.

问题描述:

I'm afraid that he ____ (lose) his keys.Look!He is standing outside.

I'm afraid that he 【has lost】 his keys.Look!He is standing outside.
现在完成时,表示丢失是过去的事情,而且现在仍然没有钥匙.七年级还没学呢,有简单点的吗那就用一般过去时,lost