21. Please _______ page 54 and read Lesson Twelve.
A. turn to B. turn into C. turn in D. turn on ( )
16. “Can you come here next Friday?” “Sorry,I ______.”
A. can't B. mustn't C. needn't D. may not ( )
21. Please _______ page 54 and read Lesson Twelve.
A. turn to B. turn into C. turn in D. turn on ( )
16. “Can you come here next Friday?” “Sorry,I ______.”
A. can't B. mustn't C. needn't D. may not ( )