11.When the old man _____ to walk back to his house,the sun _______ itself behind the mountain.

A.started;had already hidden B.had started;had already hidden

C.had startd;was hiding D.was starting;hid

12.He was hoping to go abroad but his parents ______ that they wont’t support him unless he can borrow the money from the bank.

A. were deciding B. have decided C.decided D.will decide

13. Father ______ for London on business upon my arrival,so I didn’t see him.

A. has left B. left C. was leaving D. had left

14.—If the traffic hadn’t been so heavy ,I couldn’t have been back by 6 o’clock.

—What a pity! Tina _____ here to see you .

A. is B.was C.would be D. has been

15.They ______ on the program for almost one week before I joined them,and now we ______ it as no good results have come out so far.

A. had been working;are still working B. had worked ; were still working

C. have been working; have worked D. have worked; are still working

16. —Hurry up!Alice and Sue are waiting for you at the school gate .

—Oh,I thought they ______ without me .

A.went B.are going C. have gone D.had gone