Mark Zuckerberg is the founder of the site Facebook, _________ you can have a look at each other’s pictures．

where

which

when

as

Naturally, when the important festival comes in China, fireworks _________ and everyone feels happy．

take off

go off

switch off

turn off

I wish I could offer you some cake but there’s _________ left．

nothing

none

nobody

no one

_________ you are aware of the trick used in advertisements, I don’t think you are eager to buy．

Unless

Whether

Once

Although

We should consider the students’ request _________ the school library _________ more books _________ popular science．

that, provide, on

which, provides, about

that, should provide, with

that, provides, on

________ untidily and ________ in a strange way, my brother must have appeared to the people _________ to be a silly boy．

Dressed, spoken, presents

Dressing, speaking, present

Dressed, speaking, present

Dressing, speaking, be present

The best job is ________ which uses your skill in doing something with your interest in the subject．

that

the one

it

one

It’s nearly 5 years since I worked in the company．I _________ in a school．

taught

was teaching

am teaching

had been teaching

We have more than 80 flats in this building, each _________ solar heaters．

is equipped with

equipped with

is equipped by

equipped by

Eventually, she has recognized _________, whatever happens and however bad _________ seems today, life still goes on and everything will be better tomorrow．

that, it

it, that

it, what

that, what