1.Because they like bottles better.

　　2.An anchor.(錨)

　　3.A monkey can have fleas,but a flea can't have monkeys.

　　4.A blackboard.

　　5.Sixty.

　　6.The letter V.

　　7.A doorbell.

　　8.On his feet.

　　9.A cat on a chair waiting for a mouse.

　　10.He got wet first.