In front of our house ________ we used to swim.
Theteacher,with6 girls and 8 boys of her class, __________visiting a museum when the earthquake struck.
You_________return the book now. You can keep it till next week if you like.
I ’d rather have a room of my own, ________small it is, than________a room with others.
Watching TV is_______a kind of relaxation , and it also___________our knowledge.
I have some doubt ____ his words, but _______ is no doubt that he has passed the exam.