Confronted with the complex international situation, we need a foreign policy that is more ____.
A．symbolic B．confidential C．controversial D．flexible
The incomes of skilled workers went up. ____, unskilled workers saw their earnings fall.
A．Meanwhile B．Moreover C．Therefore D．Otherwise
–Mom, I will send you a gift for your birthday, ____ beyond your imagination.
--Oh, dear, thanks.
A．which B．what C．the one D．something
____ the machine, the engineers paid much attention to the noise from it.
A．Having examined B．Being examined C．Examining D．Examined
____ the 1990s, the number of antelopes had fallen to about 50,000.
A．During B．Since C．By D．Over
If the machine makes a mistake -- ____ rarely happens -- it gives a warning in the form of a red light.
A．that B．which C．as D．what
