In that school, English is compulsory for all students, but French and Russian are _______.

I’d like to arrive 20 minutes early___ I can have time for a cup of tea.

Look! The police are searching for clues at thecrime scene. Which of the following is correct for the underlinedword in the sentence

Which one of the following has adifferent stress from the others?

下列各句中，没有语病的一句是