I’ll start early , _______ it is dark or light .
A. however C. whether C. if D. though
Scientists are trying to develop a special material, _______ they will make use of in space.
| A．that | B．what | C．it | D．one |
There is no power like ______ power of confidence, and there is no student as competitive as ______ student who trusts his own abilities.
| A．the; a | B．a; the | C．/; a | D．the; / |
— Have you heard of that?Tom recently bought a new car and an expensive flat.
— ________? He even couldn’t have enough money to pay for the rent.
| A．How about | B．Why not | C．How come | D．So what |
I’ve just seen no more than one copy of“ Gone with the Wind”in the bookshop opposite. Tom, go and buy ________ back.
| A．one | B．any | C．it | D．some |
Carol said that the work would be well done by the end of October, ________ personally I wondered completely.
| A．which | B．at which | C．in which | D．about which |