After trying many times, they had to _________ the hope of saving the seriously-wounded elephant．

abandon

release

discourage

resign

It seems quite _________ to expect a student to master 3000 words within only 2 days．

available

beneficial

absurd

accessible

I'll get Bill to accompany me _________ the piano when I sing a song at the concert．

at

with．

to

by

The children wouldn't stop talking, so I was beginning to get _________ with them．

annoying

annoyed

to annoy

annoy

_________ many times, she still can't remember it．

Had told

Having been told

Having told

Being told

“Well done, John! Not a single mistake _________ in your exam paper this time!” said the teacher．

you made

did you make

had you made

have you made

This machine _________ It has worked for years．

didn't work

wasn't working

doesn't work

isn't working

When they moved to Canada, the children _________ to the change very well．

adopted

adapted

accustomed

suited

Busy as they are, parents should _________ at least two hours every week to spend with their children．

set out

set away

set off

set aside

If you want to book tickets for the 2012 Olympic Games, just call 00952012．It _________ be simpler．

mustn't

won't

needn't

couldn't