I used to go camping a lot, so it wasn’t the first time I ______ in a tent.
| A．will sleep | B．would sleep |
| C．had slept | D．have slept |
______ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.
| A．To be tried | B．Tired | C．Tiring | D．Being tired |
I don't understand what the engineer means, but I’ve got rough idea of Project plan.
| A．the; a | B．不填； the | C．the；不填 | D．a; the |
—Sorry, do you mind if I smoke here?
—Yes, _______.
| A．you could | B．go ahead | C．I do | D．my pleasure |
It’s the first time that he has been to Australia, _______ ?
| A．isn’t he | B．hasn’t he | C．isn’t it | D．hasn’t it |
Peter’s jacket looked just the same as Jack’s, but it cost _____ his.
| A．as much twice as | B．twice as much as |
| C．much as twice as | D．as twice much as |