The room is in a terrible mess; it ________have been cleaned.
| A．can’t | B．mustn’t | C．shouldn’t | D．wouldn’t |
—Mr. Smith, why are you always asking me to do the difficult work?
—Because you _______ do such a thing and nobody else is fit for it.
| A．would | B．should | C．can | D．may |
The traffic administration indicates that airline passengers are only allowed to carry their luggage _______ less than 5 kilograms with them.
| A．weighed | B．being weighed |
| C．weighing | D．to weigh |
How long do you think _______ the conflict between Japan and China comes to an end?
| A．will it be until | B．will it be when |
| C．it will be before | D．it will be that |
We are seeking a prime minister, ______ who will devote himself to the interest of the country.
| A．he | B．him | C．that | D．one |
______, as long as I’m with nature, I don’t care.
| A．However tough is the journey |
| B．Whatever tough is the journey |
| C．However tough the journey is |
| D．Whatever tough the journey is |