The man in prison insistent that he nothing wrong and set free.
| A．should do; should be | B．had done; should be |
| C．had done; had been | D．should do; had been |
Einstein liked Bose’s paper so much that he ________ his own work and translated it into German.
| A．gave off | B．turned down | C．took over | D．set aside |
Giving up my job to go back to full-time education was a big __________, but now I know it was the best decision I ever made.
| A．project | B．commitment | C．competition | D．ambition |
The new tax would force companies to __________energy-saving measures.
| A．adapt | B．adopt | C．adjust | D．address |
But for water，it ______ possible to live in the desert．
| A．is | B．was | C．were | D．wouldn't be |
I like __________in the early morning when the air is fresh and I can take a walk around the garden.
| A．that | B．it | C．which | D．what |