Einstein liked Bose’s paper so much that he ________ his own work and translated it into German.[ ]

He is _____ tearing up what he has writtenand beginning over again.

anager of the factory wants to improve production a great deal, but he doesn’t spend much on technology.– I am afraid he won’t realize his dream. You know ________.

He sings ________ and he is a __________ singer(歌手).

I can hardly imagine Peter ________ across theAtlantic Ocean in five days.