Choose the correct answer to replace the underlined part

Dick has just returned from London.

[　　]

Read and choose the word of which the underlined part has the same sound with that of the given word

returned

[　　]

Read and choose the correct answer

How long has he studied English?

[　　]

What's the matter with you?

[　　]

A．My leg hurts.

B．Your leg hurts.

C．It's OK.

Read and choose the best answer

－May I smoke here?

－No, you ________.

[　　]

A．may not　　B．mustn't　　C．needn't