These experiences ______ me _____ the drug’s harmful effects. 

Miss Green contributed fifty dollars, but she wished she could contribute _____.

In the park , the number of the visitors is tightly ____ to avoid damaging the environment or putting stress on the animals.

Nathan , studying abroad, was _____ to see his friend off at the airport.

 —What do you think of the speech given by the CEO from Hongkong?—Excellent, I have never heard           one before.

Because of the snow , many parts of the countryside are only _____ by helicopter.

Although he is old, he’s very          . However, when he was young, he was very lazy.

Mr. Wang, a(n)_______editor and writer, is going to attend the conference to be held in Beijing next week.

 The ______ used ______ to produce a rabbit from his hat.

The book A Short Guide to Great Britain , which you sent me before I went abroad , offered me ______ guide.I am really thankful.

 .Without any doubt, depression________can create a variety of negative health effect.

You should be __________ with what you have.

A flag is _____ a piece of cloth. It stands for a nation’s people, their land and their history. 　 

After a day’s walk in the desert, the explorers reached the camp, _______.

He’s _______ to fail the exam if he doesn’t do any revision.

Once I am_________to carry out my plan, nothing can      .

You’d better carry a(n)      tyre in the back of your car in case it breaks down on the way.

.The man rewarded with a large amount of money was too ___ to tell his family.

Nowadays college graduates have to be highly______ to find an ideal job.

.- Did you enjoy yourself at the party? - Yes. I’ve never been to _____ one before.