The danger of 
HINI was real, especially in the beginning, little was known about the new disease.
| A．if | B．because | C．when | D．before |
It is possible that ______ 2030, cars and airplanes will run on the new fuel.
| A．by | B．on | C．until | D．at |
______ China we’ll see in the year 2015 will be quite ______ different country from what it is now.
| A．不填; a | B．The; a | C．The; the | D．不填; 不填 |
Everyday the mother seems to be busy until 10o’clock at night,____the rest of the
Family have fallen asleep.
| A．that | B．by which time | C．on time | D．whose time |
We have to delay the party till next week, ____we will not have something important
Tod o.
A.when B.whichC.atwhich D that
I don’t like such a person____often lies before your face.
| A．what | B．that | C．as | D．which |