David asked Mary to go to a concert with him but she _________ his request _________ politely．

turned; down

turned; out

turned; away

turned; up

In fact most people in that area are _________ than they were 5 years ago because of years of wars．

poorer off

worse off

better off

richer off

This is a new _________ to language teaching, which can arouse students' interest in learning the language．

approach

means

method

way

John was fired by his factory and only then _________ how wrong he was to be lazy and careless．

had he realized

he had realized

did he realize

he realized

_________ the exam, the boy was punished by his father．

Having not passed

Not passed

Not passing

Not having passed

I was _________ while I was talking on the phone with her．

cut down

cut up

cut out

cut off

Many people who first visit the United States will find that America is a _________ country．

highly- developed

high-developed

high-developing

highly- develop

I regret _________ you that we are unable to offer you employment．

informing

having informed

to inform

to informing

It's going to be _________ difficult job but I'm sure she will rise to _________ challenge; she is a determined person, after all．

a; the

不填；a

the; a

the; 不填

Bob insisted that he __________ nothing wrong and that David __________ to him right away．

had; apologized

have done; apologized

have done; apologize

had done; apologize