. --- How about the food I ordered? I __________ for 20 minutes.
--- Sorry, sir. I will be back with your order in a minute.
| A．have waited | B．have been waiting | C．will have waited | D．was waiting |
. ---- Do you know our hometown at all?
---- No, this is the first time I ____ here.
| A．was | B．have been | C．came | D．am coming |
They won the game, _______ made their team leader proud of them.
| A．that | B．which | C．it | D．all this |
His parents wouldn’t let him marry anyone ______ family was poor.
| A．of whom | B．whom | C．of whose | D．whose |
The first thing ________ we should do is to master the basic grammar.
| A．which | B．that | C．as | D．of which |
Diamond, _________, is the hardest of all materials.
| A．like we know | B．since we know | C．we know | D．as we know |