Some researchers are finding that daydreaming may be important to ________ mental health．Daydreaming, they say, is ________ good means of relaxation．

the；不填

不填；the

不填；不填

不填；a

Charles did what he could _________ the drowning man, although he himself was in danger．

rescue

rescued

to rescue

rescuing

Only when I left my parents for Italy ________ how much I loved them．

I realized

I had realized

had I realized

did I realize

He devoted all his life to ________ novels．

write

writing

write with

writing with

I suggested the thief _________ into prison．

referred to being put

referred be put

referred to be put

referred should be put

After studying in a foreign language college for four years, Jane _________ her job as an English teacher in the countryside．

set out

took over

took up

set up

In the reading room, we found her _________ at a desk, with her attention _________ on a book．

sitting; fixing

to sit; fixed

seating; fixing

seated; fixed

What great trouble we had _________ where his house was．

to find

finding

find

found

_________ has already been pointed out, grammar is not a set of dead rules．

As

It

That

Which

In the dark street, there wasn’t a single person _________ he could turn for help．

that

who

from whom

to whom