In the lab, don’t _________ anything without your teacher’s permission(允许)．

feel

touch

to touch

feel like

I was still sleeping when the fire _________, and then it spread quickly．

broke out

put out

came out

got out

The head office of the bank is in Beijing, but it has _________ all over the country．

companies

branches

organizations

businesses

What shall we use for power when all the oil in the world has _________?

given out

put on

hold up

used up

All these gifts must be mailed immediately _________ in time for Christmas．

in order to have received

in order to receive

so as to be received

so as to be receiving

These wild flowers are so special that I would do _________ I can to save them．

whatever

which

that

whichever

_________ surprised me most was the sudden change of his attitude．

That

What

Which

It

It worried Mary a bit _________ she would pass the college entrance examination．

whether

if

that

how

Can you make sure _________ the gold ring?

where Alice had put

where had Alice put

where Alice has put

where has Alice put

You can’t imagine _________ when they received these nice Christmas presents．

how they were excited

how excited they were

how excited were they

they were how excited