--- He’s already been back to Australia, _____ he?
---_______________. He is on a visit to Shanghai.
| A．has；No | B．has; Yes | C．is; Yes | D．is, No |
— Would you like to go hiking with us?
— ________. I’m preparing for the coming exams.
| A．I’m afraid not | B．Yes, I’d love to |
| C．I agree | D．Yes, I’m sure |
— Excuse me, could you tell me ________ to fly to Guilin?
— About two hours.
| A．how soon does it take | B．how long it takes |
| C．how long did it take | D．how soon it took |
The boy isn’t old enough ________ with the difficult problem by himself.
| A．deal | B．deals | C．dealing | D．to deal |
Not only Susan but also Sandy _________ abroad for traveling. They will return next Sunday.
| A．has gone | B．have gone to | C．have been | D．has been to |
— _________ has Liu Xiang taken part in world’s competitions of 110-metre hurdles?
— I’ve no idea. Let’s find it out on the Internet.
| A．How often | B．How many times | C．How much time | D．How much |