She locked her room _____ a thief would break into it.

Would you mind if I turned on the radio and listened to some music?—______. In fact, I also like to listen to music in my car.

.This printer is of high quality and very expensive. ________, we would buy __________.

Is this ___________ruler?—No.________________is over there.

Mary, what do you want, coffee or milk ?— ___________. I don’t feel like drinking anything now, Mum.