Coins may be of different sizes, weights, and shapes and of different metals．

Each hour and each minute is of great value for us．

The dictionary is of much help for the English teachers．

If I were to tell you that I killed him, would you believe me?

They are to pay a visit to the teacher together at ten a. m. tomorrow．

I’m afraid your parents won’t approve of your going there．

Seldom do I go home after five o’clock in the afternoon．

I seldom go to the cinema because I don’t really like it．

The words shouldn’t be used in the normal situation．

Will you be late for lunch or will you have it at the normal time?