She is shorter than ____in her class.

The poem is hard to understand. Can you make ___ of it?

—Mr. Green was born in China.
—It’s no _____ he can speak Chinese so well.
matter       B. doubt         C. wonder         D. problem

It’s known to all that the_____ of life is full of hardships.

We have to keep       with the changing times.

He asked Mary whether she had passed the exam ________．

Pine trees, of which there are almost one hundred ____, are found throughout the North Temperate Zone.

The salmon dish was _______, wasn’t it?

All the         indicate that he has been deeply involved in the crime.

This is a new ______ to language teaching, which can stimulate students’ interest to learn the language.