Listen! His family must be quarrelling, ____?
| A．mustn’t it | B．isn’t it | C．aren’t they | D．needn’t they |
This is the first time that Iface to face with the president.
| A．had come | B．have come | C．came | D．come |
Silk from China found its way to India, the Middle East and Rome,spices(香料) and glass, which was not known to China.
| A．in exchange for | B．in return | C．in change for | D．in need of |
How time flies! It has been ten years I moved to Chongqing.
| A．when | B．that | C．before | D．since |
.It remainswhether Jim will be healthy enough to play in the finals.
| A．seen | B．to be seen | C．seeing | D．to see |
It is well known to all that a machine needs fuel to run;,man needs food to live on.
| A．similarly | B．completely | C．likely | D．absolutely |