Their products enjoy 30 percent ________ of the market in this country because both the quality and their service are fine.
| A．features | B．shares | C．interests | D．sales |
---That must be a mistake. ---No, it ___ a mistake.
| A．must not be | B．needn’t be | C．cannot be | D．may be not |
.Jack and I can go to the lecture ___
| A．but neither can Mary | B．and do Mary can | C．but Mary can't | D．and Mary also can’t |
That paint is wet, you ___ touch it.
| A．mustn’t | B．oughtn’t | C．don’t | D．didn’t |
.I ___ the book at all.
| A．don’t like | B．like | C．am fond of | D．would like |
The bike __ much money.
| A．has not cost | B．cost not | C．isn't cost | D．didn’t cost |