．We can never expect _________ bluer sky unless we create _________ less polluted world.
| A．a；a | B．a；the |
| C．the；a | D．the；the |
Mr smith has little acquaintance_____ modern poetry while he has a wide knowledge ___ painting.When it comes____music,he has a talent _____it.
| A．with; of ; to; for | B．of; about; to; of | C．with; about; at; of | D．of; of; to; for |
—How do you deal with their objections to our plan？
—I think we can safely ____ them since our plan is made on a scientific basis.
| A．approve | B．dismiss | C．distribute | D．disgust |
She was terrified of saying something that would make her____ herself.
| A．express | B．conduet | C．impress | D．betray |
You were mistaken ____Jane，she really wanted to help you.
—I admit that I mistook her offer______ a threat. Anyhow，I don’t like the way she acts.
| A．about; to | B．for; as | C．about; for | D．in; for |
Although she____ for a moment about the job，she finally accepted it considering the benefits of it.
| A．hesitated | B．paused | C．stopped | D．wondered |