¡¡ 13.— The bell is ringing.

¡¡¡¡   —Yes, class has begun. Let's stop ________.

¡¡¡¡A. to shout       B£®shouting      C. for shouting        D. to shouting

¡¡¡¡14. They struggled and struggled.________, they climbed up.

¡¡¡¡A. In the end     B. Finally         C. At last            D. To the end

¡¡¡¡15. Mr. Wang told us that the house needed __________.

¡¡¡¡A. painting       B. to paint        C. to be painting      D. paint