193. What they need at present _______ science and technology.
| A．is | B．has | C．are | D．Were |
It is generally considered unwise to give a childhe or she wants.
| A．however | B．whatever | C．whichever | D．whenever |
—Why didn't you remind him of the possible danger?
—But what ____ otherwise? He never listens to me．
| A．could I do | B．could I have done | C．should I do | D．must I have done |
—Your colleague's spoken English is beautiful, Lily．
—It's no wonder．She ____ in the USA for a year as a visiting professor．
| A．worked | B．has worked | C．had worked | D．has been working |
An immediate interest cut might contribute to economy _____, any recovery is likely to be very slow．
| A．Even though | B．Even so | C．Ifso | D．If ever |
The 8.8 quake in central Chile caused widespread damage, destroying lots of buildings and hundreds of thousands of people ____．
| A．to affect | B．affecting | C．affect | D．affected |