—______, Sonia. Is this your backpack?
—Yes, it is. Thank you.
| A．Sorry | B．Goodbye | C．Excuse me | D．OK |
Recycling means waste can be put to ______ and be brought back to life.
| A．danger | B．use | C．practice | D．advantages |
--Why don’t you get used to the life in Beijing?
-- ______ the crowded traffic ______ the high living cost. The only reason is the badly polluted air.
| A．Either…or | B．Neither, nor |
| C．Not only, but also | D．Both, and |
--What’s the result of killing the sharks?
--If the number of the sharks ______, the other ocean lives will be in danger as well.
| A．drop too little | B．drops too little |
| C．drop too low | D．drops too low |
If you want to understand a culture better, it is worth spending the time ______ about their costums.
| A．learning | B．to learn | C．learned | D．learn |
--Mum, may I play computer games for a while?
--As soon as all your homework ______, you can.
| A．will finish | B．finish |
| C．is finished | D．will be finished |