－What is it that made Obama happy?

－________ the US President．

To elect

Electing

Being elected

Having elected

－How did Tom feel after the accident?

－He ________ for several minutes because he was frightened．

stood there shaking

was standing there shake

was standing there and shaken

was standing there to shake

－Why didn't you buy the book?

－I ________, but I didn't have the money．

would have

bought

would like to

had bought

－I promise my daughter ________ get a nice present on her birthday．

－I think it will be a big surprise to her．

must

shall

might

need

－Hello, Sally．How's everything going?

－________．

The same to you

I can't agree more

That's right

Surviving

－I'm really angry at my naughty son．He never listens to me and often is against me．

－________, Ellen．Things will go out．

It doesn't matter

Take your time

Don't mention it

Take it easy

－Volunteering is becoming ________ popular in China．

－Yeah, people are now aware that helping others is helping themselves．

increasingly

successfully

necessarily

naturally

－It's over twenty years ________ I lost touch with my math teacher of the primary school．I really miss him．

－Why not ring him up now?Here's his telephone number．

since

until

while

before

－Would you please give me some useful advice on how to improve my English?

－You ________ be diligent ________ in your English study, I think．

cannot, over

can, for

cannot, too

cannot, enough

－________ you write so well?

－By reading and keeping diaries every day．

How is it that

Is it how that

How it is that

What is it that