—A medical team was sent to Japan by air five hours ago.—So they ______________ have arrived by now. The flight usually takes four hours or so.
—Have you _________some new ideas? —Yeah, I’ll tell you later.
The writer is known ________her novels.
The kind old lady offered to ________the poor homeless stranger.
It _________have rained last night, for the ground is wet.
Bob is ________crazy about Beethoven that he knows all his works well.