You can go out _____ you promise to be back before 11 o’clock.
| A．so that | B．as far as | C．so long as | D．in case |
______ nobody was very enthusiastic about it, they decided to cancel the trip.
| A．See that | B．Seeing that | C．So | D．When |
I think our boat can pass the treacherous water ______ cautiously handled.
| A．until | B．if | C．lest | D．with |
The engineers are going on with their highway project, _____the expenses have risen.
| A．even though | B．just because | C．now that | D．as though |
The fuel must have been finished, ____ the engine stopped.
| A．since | B．as | C．because | D．for |
The washing machine ___ last Wednesday works well.
| A．I bought | B．I bought it | C．which I buy | D．that I bought it |