It is reported that the United States uses ________ energy as the whole of Europe.
| A．as twice | B．twice much |
| C．twice much as | D．twice as much |
—Do you want me to get you a chair?
—No, .
| A．it’s nice of you | B．I can manage it |
| C．don't bother | D．I am glad to hear that |
No one really knows exactly dfwhen the first people arrived in we now know as California
| A．what | B．when | C．where | D．which |
I'll bring some medicine just some of us get sick while travelling．
| A．As if | B．in case | C．even though | D．as long as |
—Have you found the missing?couple in the mountain ?
—No, but we hard to get in touch with them．
| A．have tried | B．have been trying |
| C．had tried | D．had been trying ． |
The average temperature in．Tibet has risen0.32 degrees centigrade every decade since 1961, according to the China Meteorological Administration,．
| A．to | B．at | C．by | D．in |