题目内容：

这对双胞胎很像,我说不出她们对的不同之处.The twins look the same.I can't _ _ _ _ them.
We always do _(us) best to help the children in poor areas.
I heard from my penfriend in the USA last month(同义句)
I _ _ _ _ my penfriend in the USAlast month.

优质解答

separate,our,第三个中hear from的意思是 收到来自.的消息 根据这可选相近词组get news from