Why did you just sit and watch？ You _______ me.
| A．could help | B．should help |
| C．could have helped | D．must have helped |
John invited approximately 40 guests to his wedding, most of _______ are family members.
| A．whom | B．that | C．them | D．which |
According to the law, all foreigners have to _______ with the local police within two weeks of arrival.
| A．associate | B．dispute | C．negotiate | D．register |
Look, _______ fashionable clothes is he wearing that all the eyes are fixed on him!
| A．so | B．what | C．how | D．such |
The watch was very good, and he _______ 20 percent down for it.
| A．paid | B．cost | C．bought | D．spent |
When the post fell _______, Dennis Bass was appointed to fill it.
| A．empty | B．blank | C．vacant | D．bare |