—What time do you usually go to school?—I usually go to school________six o’clock.A.inB.atC.on
—Excuse me, when is the Christmas party of our school?—This year, it's_______18:00_______ Monday evening.
---Your schoolbag looks very nice!--- .
--- Where _______ my books?--- ___ on the desk.
I don’t like science _______ it’s difficult.
There ___ a book on the desk .