——I’d like to book a flight to Shanghai, please.
——____________.
| A．No, of course not | B．Do you mind if I said no? |
| C．Yes, sir, single or return? | D．You can’t. We are busy |
lively
| A．possible | B．universe | C．strike | D．chemical |
country
| A．proud | B．shoulder | C．soup | D．trouble |
exit
| A．exercise | B．exactly | C．exhibition | D．experiment |
—The hall___ for international conferences is of great importance．
—I see, and we are sure to complete it on time．
| A．built | B．to be built |
| C．having been built | D．building |
Since Tom ___downloaded a virus into his computer, he can not open the file now．
| A．readily | B．horribly | C．accidentally | D．irregularly |