I go to school by _______, but my best friend goes there ______foot.

Tony is _____ friend. ____ in Class One.

Mum，could I have an MP3 like this—Certainly， we can buy one， but as good as this. The price of this kind is a little high.

ch14, 2013, Xi Jinping was elected_______ president of _______People’s Republic of China.

’t think David could have done such a stupid thing last night, ____