We have been collecting stamps for five years.(同义句转换)We _____ _____ stamps five years ago.He finished writing a book last week.(对writing a book 提问)_____ ______ he ____ _____ last week?

问题描述:

We have been collecting stamps for five years.(同义句转换)
We _____ _____ stamps five years ago.
He finished writing a book last week.(对writing a book 提问)
_____ ______ he ____ _____ last week?

began collecting
what did finish writing

began collecting What did he finish doing

began/started,collecting
what ,did,finish ,doing

began collecting
What did ....finish doing