It’s a wise ________ to wear the white tie. It matches your shirt well.

I ________ use a clock to wake me up because at six o’clock each morning the train comes by my house.

—It’s _________ useful dictionary and you can’t throw it away .   —Thank you . I didn’t know it before .                 

In our English class, the English teacher asked us to stand up and introduce__________.

---_______ is it from your home to the centre of the town? ---Only 10 minutes on foot.