Study hard, ________ you're sure to have a good result in the exam．

but

and

so

or

I don't know the reason ________ the house is so dirty．

that

which

why

when

We thought you were a person ________ we could expect good decisions．

with whom

by who

from which

from whom

The money ________ you were to buy dog food is gone．

which

whom

with which

with that

The school ________ he studied is in Shenzhen．

where

that

which

who

Jack is no longer the lazy boy ________ he used to be．

whom

which

that

whose

The student ________ we saw just now is the best runner in our school．

whom

which

to whom

to who

The trees ________ are on the school campus have lost ________ leaves．

who, their

which, their

that, they

whom, them

To our great surprise, we got ________ people to attend the conference as we expected．

twice as many

twice many

twice many as

as twice many

－Have you ever considered ________ your job?

－No, I considered my job here ________ interesting．

to change; to be

to be changing; as

changing; being

changing;/