I do ______ your timely help yesterday, without _______ I couldn’t have found the solution.
| A．thank; which | B．appreciate; it | C．thank; it | D．appreciate; which |
— What’s that terrible noise ?
— The neighbors _____ for a party.
| A．have prepared | B．are preparing | C．prepare | D．will prepare |
I know a little bit about Italy as my wife and I ________ there several years ago.
| A．are going | B．had been | C．went | D．have been |
By the time he realizes he ____into a trap, it’ll be too late for him to do anything about it.
| A．walks | B．walked | C．has walked | D．had walked |
The wet weather will continue tomorrow, when a cold front ______ to arrive.
| A．is expected | B．is expecting | C．expects | D．will be expected |
By the time he realizes he ____ into a trap, it’ll be too late for him to do anything about it.
| A．walks | B．walked | C．has walked | D．had walked |