An old professor was giving a lecture,so our class teacher asked us ______so much noise.
| A．Don't make |
| B．not make |
| C．not making |
| D．not to make |
I ________ be a little bit slow, but at least I don’t make stupid mistakes.
| A．should | B．may | C．must | D．need |
The two runners are neck and neck; _______ of them could win the race.
| A．either | B．neither | C．all | D．none |
I usually have ________ hamburger while waiting for ________7: 00 school bus.
| A．the; a | B．不填; the | C．a; the | D．不填; a |
My calculations werebasedonthe __________ thathouse prices would remain steady.
| A．theory | B．assumption | C．procedure | D．regulation |
Icamehomeverylatelastnight,__________,earlythismorning.
| A．atleast | B．onthewhole | C．inaword | D．orrather |