The experiment, though they had tried their best, ________ to be a failure．

A．turned up

B．turned out

C．turned in

D．turned on

Plastic parts can ________ metal ones in many machines．But they don’t last long．

A．substitute for

B．be replaced with

C．take the place for

D．be in place of

If you eat too many sweeties, you will ________ your appetite．

A．damage

B．spoil

C．destroy

D．attack

Human beings like any other living things will get old and die, and it is an objective law ________ of man’s will．

A．independent

B．resistant

C．free

D．acceptable

Our bodies are strengthened by taking exercise．________, our minds are developed by learning．

A．Probably

B．Likely

C．Similarly

D．Generally

The sailor ________ swim only half way before he got totally exhausted and drowned．

A．could

B．might

C．would

D．was able to

－ Do you Know Jim quarreled with his brother?

－ I don’t know, ________．

A．nor don’t I care

B．nor do I care

C．I don’t care, neither

D．I don’t care also

________ was sentenced to 10 years’ imprisonment for theft．

A．A cook and waiter

B．A cook and a waiter

C．The cook and waiter

D．A cook and the waiter

________ the villagers realized how serious the pollution was?

A．When was it that

B．Was it when

C．It was when that

D．When it was that

If you don’t turn up by 6 o’clock, we will go ________ you．

A．without

B．except

C．but

D．besides