英文好的.
问题描述：
英文好的.
present perfect continuous tense.
我想不到来造句啊==
谁可以帮我一下//、
have been crying...
has been cleaning...
have been walking...
have been trying...
has been doing...
答
the babies have been crying for two hoursshe has been cleaning since yesterdayi have been walking on the streets for monthsthey have been trying to find the lost dog for weeks.she has been doing her h...