He has some doubt ________ he will succeed in his research work.
| A．whether | B．weather | C．which | D．that |
Word comes _____ free books will be given to ______come first in this book fair.
| A．which,no matter who | B．that, anyone who | C．which,whoever | D．that,those who |
The fire _______ before the fire-fighters arrived.
| A．has been put out | B．was put out | C．had put out | D．had been put out |
With some snow on top of it,the Yellow Mountain looked fantastic this winter.Actually, I doubt whether we could visit ______mountian in China.
| A．a most beautiful | B．the most beautiful | C．a more beautiful | D．a beautiful |
---Would you mind letting me ______ your laptop for another two weeks?
----No problem.
| A．borrow | B．keep | C．lend | D．bring |
.It is well known that water is not _____ endless resource,nor _____ that can be made once more.
| A．the, / | B．an, one | C．an . that | D．/, one |