The little chick _____ the earthworm, deciding whether to swallow it or let it go.[ ]

the whole process for the studies of cancer took more than a year, the technology is moving so fast that it will soon take just weeks

Daniel，why are you so late? We_______ you would be here an hour ago.— SorryI _______ know you were all here

I’m sorry I______ my exercise book at home.—Don’t forget ______it to school tomorrow, please.

e Chinese dream ______ at an earlier date, we must accelerate the pace of reform and opening up.