读一读，填一填。
Mike and Lily are going to the bookstore (书店). In the bookstore, Mike wants (想要) to buy (买) a pen.
He says, " I like this pen. How much is it? " The salesman (售货员) answers, " 3 yuan." Lily likes the schoolbag.
She buys it. It is 40 yuan.
1. Mike and Lily buy a ___________ and a ___________.
2. Mike likes the ___________, Lily likes the ___________.
3. The pen is ___________ yuan. The schoolbag is ___________ yuan.
