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The advertisement says the vacuum cleaner (吸尘器) can ______ everything from the floor. Do you believe it?
| A．pick up | B．take up | C．make up | D．put up |
More than a quarter of the energyin the United States goes to moving people and goods from one place to another.
| A．using | B．used | C．to use | D．use |
—The battery in my cell phone is running low.
—I that last night before we went to bed.
| A．was noticing | B．have noticed | C．would notice | D．had noticed |
．What I like about Harvard isthere’s the old classical look—there are parks and traditional buildings.
| A．why | B．where | C．that | D．how |
With a lot of tough problems, the pilot was still calm, cool and collective under pressure.
| A．solve | B．solved | C．solving | D．to solve |
left the door unlocked must be held responsible for the accident.
| A．Whomever | B．Whoever | C．Whatever | D．Whenever |