A group of children are looking into the box, ____ about what can be inside.

The college entrance exam is ____ important to the student, and it’s also challenging. 

I really felt         at his         words . His words are really          to me .

Peter and Bob both did well, but Peter is ________________of the two.

Carter was saying all the right things, but his smile was __________, and I knew I couldn't trust him.

A    expression appeared on his face when he learned his      bike had been stolen. 

The book you want is not ___now. I will let you know as soon as it is returned to the library.

 The work was difficult, but Tom’s          expression showed that he would finish it in time.

It was such a_____ job that I really felt_____.

---Did you have a sound sleep last night? --- Yes, never slept ________.

Sometimes, the entrance tickets are _____ free of charge from the university．

People are advised to be _____ towards the health concerns of their dear ones while burning firecrackers to celebrate the festival, for they contain harmful chemicals．

“Changes should be made in the prison for the conditions there are _____,” said the reporter．

In _____ Chinese culture, marriage decisions were often made by parents for their children.

Mr. Green kept ______ and complete records of all his business expenses.

I am sorry, sir, but that kind of digital camera is no longer _______.

With modern technology, even babies weighing _______one kilogram at birth can survive.

It was a really ____ experience. Afterwards everybody was very ____.

John complained to the bookseller that there were several pages______in the dictionary.  

A study has proven old people who are ______eaters of fish during their youth lose fewer brain cells.