________ the sound of the gun, many people came out, ________ to see what was the matter．

Heard; running

Heard; run

Hearing; run

Hearing; running

John received an invitation to dinner, and with his work ________, he gladly accepted it．

finished

finishing

having finished

was finished

It became colder and colder so the government had to ________ many buildings for the farmers whose houses were washed away．

put off

make up

put up

put in

The coffee is wonderful!It doesn't taste like anything I ________ before．

was having

have

have ever had

had ever had

We don't allow ________ here, but we can allow you ________ in the next room．

smoking; smoke

smoke; smoking

smoking; to smoke

smoke; to smoke

Prices of daily goods ________ through a computer can be lower than store prices．

are bought

bought

been bought

buying

It's reported that the United States uses ________ energy as the whole of Europe．

as twice

twice much

twice much as

twice as much

That was such an ________ question that it made me ________, not knowing how to answer．

embarrassing; embarrassed

embarrassed; embarrassed

embarrassing; embarrassing

embarrassed; embarrassing

If Joe's wife doesn't go to the party, ________．

he will either

neither will he

he neither will

either he does

I ________ in London for many years, but I have never regretted my final decision to move back to China．

lived

was living

have lived

had lived