People who have regular physical exercise seldom catch a disease like H1N1 Flu, ______?

Don’t spend so much money_____ all those useless things.[ ]

What’s your hobby, Jack?-I like playing ______football, but I don’t like playing _____violin.

Many girls are afraid ______ dogs. [ ]

“______ do you like? The yellow one ______ the white one?” “The yellow one.”