They looked _____ each other and kept their secret _____ themselves.

—Is your father ___ home?—No，he’s working late ____ the office.

—You’ve won the drawing competition. Congratulations! Among all the pictures in the competition，I found _______was really amazing. By the way, when did you draw it? —During the trip to the Sydney Opera House _______ September.

I sit in front of the classroom _______ hear the teacher clearly .   

—What’s your speech       , Dr. Smith? —Tomorrow you will get it.