The boy wanted to go on a trip to Tibet alone，but his mother told him ___________.
| A．not to do | B．not do it |
| C．not to | D．do not do it |
Nowadays, many people walk and cycle to work _____ the government calling for living a low-carbon lifestyle to deal with global warming.
| A．in response to | B．in relation to |
| C．in addition to | D．in charge of |
My schedule is very _____ now, but I’ll spare some time to give you a hand.
| A．flexible | B．short | C．regular | D．tight |
I am _____ about the new model, and I firmly believe that there will be a good market for it.
| A．concerned | B．doubtful |
| C．confident | D．particular |
We went through the report _____ but what disappointed us was that the detailed information we wanted wasn’t proved anywhere.
| A．thoroughly | B．absolutely |
| C．entirely | D．completely |
Judging the voice not by appearance but by the voice itself makes the TV show ____ from numerous amusement programs.
| A．hold out | B．stand out |
| C．stretch out | D．turn out |