Roses need special care ________ they can live through winter．

because

so that

even if

as

The natives, ________ homes had been damaged by the flood, were given help by the Red Cross．

all their

all of whose

all those

all of their

They were the Boy Scouts ________ to help elderly people cross the streets．

whose was the work

to whom was the work

it was whose work

whose work it was

The company, ________ Mr．Smith was until recently the chairman, has made loss of 3 000 000 pounds this year．

that

which

of which

in which

Yang Liwei, ________ we all feel proud, appeared on the Spring Festival Evening．

who

whom

with whom

of whom

He looked ________ funny that we couldn’t help laughing．

very

much

rather

so

I do every single bit of housework ________ my husband Bob just does the dishes now and then．

since

while

when

as

The English play ________ my students acted at the New Year’s party was a great success．

for which

at which

in which

on which

In the office, I never seem to have time until after 5∶30 p. m. ________, many people have got home．

whose time

that

on which

by which

Recently I bought an ancient Chinese vase, ________ was very reasonable．

which price

the price of which

its price

the price of whose