Taobao is Asia’s largest retail（零售的） network platform, ______ people can buy and sell many kinds of things．
| A．when | B．whose | C．that | D．where |
____ is the ability to do the job rather than where you come from or what you are that matters.
| A．It | B．That | C．This | D．There |
Parents cannot take care of them ________, so children should learn to be independent.
| A．all the time | B．at one time | C．in no time | D．at any time |
The plane lost control all of _______ sudden and crashed in________ forest 30 miles away from the Capital Airport.
| A．the, a | B．a, a | C．/, the | D．a, / |
Elbert Einstein, for _____ life had once been very hard, was successful later in science.
| A．his | B．whose | C．which | D．whom |
______ the news, so far, has been good, there may be bad days ahead.
| A．When | B．While | C．If | D．As |