—Susan, go and join your sister cleaning the yard.—Why ____? John is sitting there doing nothing.
It’s said that there are plenty of hotels in Shanghai. There _____ be any difficulty for you to find somewhere to stay.
His pale face _________ a reluctant smile when he heart the news.A took on B came on C was taken on D turned into
________one scientist has pointed out, children’s skulls are not fully developed.
--- Hi, Kate, can I use your bike for a while this afternoon?--- Sorry.??__________?.
---Do you know who invented ________ telephone?---No. But it is really________ most important invention.