Unless _________ to speak, you should remain silent at the conference．

invited

inviting

being invited

having invited

Having a trip abroad is certainly good for the old couple, but it remains _________ whether they will enjoy it．

to see

to be seen

seeing

seen

He made another wonderful discovery, _________ of great importance to science．

which I think is

which I think it is

which I think it

I think which is

My new car, _________ I paid several thousand pounds _________, is not run-ning well．

which; for

that; for

which;/

what; with

She had two new cars, _________ was made in Japan．

one

which

and one of which

and one of them

I did it at nine o’clock, and _________ I sat reading the paper．

after doing it

after which

after while

when

In Britain he had come across a painter _________ nobody else had heard of．

which

where

with whom

/

There was _________ time _________ I hated to go to school．

a; that

a; when

the; that

the; when

I came to help you rather than _________．

harm

harmed

harming

to harm

Rather than _________ on a crowded bus, he always prefers _________ a bicycle．

ride; ride

riding; ride

ride; to ride

to ride; riding