________ by thick bamboo and high forest, the ancient city hadn't been discovered until the 1990s．

Surrounding

Surround

Surrounded

Having surrounded

The reason for his success is ________ he worked very hard．

why

that

because

how

Some of the doctors are paid almost ________ as the nurses．

twice as much

much as twice

as much twice

as twice much

________ I'm well again, I can go on with my work．

Even if

As though

Ever after

Now that

The government has to close those small factories to prevent the water of the river ________．

polluting

from polluting

from being polluted

polluted

It's based on the idea ________ all people are created equal, ________ is accepted by most people．

that; that

which; which

which; when

that; which

Then you usually lie there just ________ the ceiling, thinking about everything that could go wrong．

glancing at

watching at

glaring at

staring at

He couldn't ________ the fact that the money was found in his house．

answer for

leave for

account for

care for

In the end I lost my ________ and shouted at her．

character

manner

benefit

patience

The bill would ________ workers twelve weeks of unpaid leave for family emergencies．

permit

supply

admit

provide