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

as twice

twice much

twice much as

twice as much

Rainforests ________ and burned at such a speed that they will disappear from the earth in the near future．

cut

are cut

are being cut

had been cut

As a rule, domestic servants doing odd jobs are paid ________．

by the hour

by hour

by an hour

by hours

Quite a few people used to believe that disaster ________ if a mirror was broken．

was sure of striking

was sure of having struck

was sure to be struck

was sure to strike

With a lot of difficult problems ________, the newly-elected president is having a hard time．

settled

settling

to settle

being settled

We were swimming in the lake ________ suddenly the storm started．

when

while

until

before

He ________ that they needed more time to finish the project, and I was finally convinced and allowed them another two months．

said

explained

argued

asked

Maureen lit a cigarette and ________ one to Lucy．

provided

supplied

offered

sent

So Mr．Brown’s experienced eyes, in one glance, ________ his daughter up．

summed

summing

sums

were summed

She thought I was talking about her daughter, ________ in fact, I was talking about my daughter．

whom

where

which

while