Mr. Wang, a famous lawyer, was on a business trip yesterday, or he _______ me a helping hand with my case.
| A．has given | B．had given |
| C．could give | D．would have given |
. -----I don’t suppose the police know who did it.
-----Well ,surprisingly they do. A man has been arrested and________now.
| A．has been questioned | B．is being questioned |
| C．is questioning | D．has questioned |
In 1965, a new Voting Rights Bill became law, ________all black people had the right to vote from then on.
| A．by which | B．that | C．by what | D．which |
-----Where was it________the road accident happened yesterday?
-----In front of the market.
| A．when | B．that | C．in which | D．how |
All ________is needed for life on board the submarine comes from the ocean.
| A．/ | B．what | C．that | D．which |
Your pen________smoothly. Where did you buy it?
| A．writes | B．is written | C．wrote | D．was written |