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1. Put the verbs in bracket in the correct form.
1. The sea (cover) ____________________ two thirds of the world.
2. We (not come) ____________________ from Canada. We (come) ____________________ from USA.
3. She (work) ____________________ from Mondays to Fridays. She (not work) ____________________ at weekends.
4. Andrew and Les (not go) ____________________ to school by bus everyday. Most morning Andrew (go) ____________________ by bicycle and Les (walk) ____________________.
5. They ____________________ (not finish) their homework yet.
6. Yesterday when I came to see Peter, he ____________________ (do) his homework.
7. They ____________________ (not write) any letters to me since she moved to Ho Chi Minh city.
8. Listen! Sam (play) ____________________ the piano.
9. Look! Somebody (swim) ____________________ in the river.
10. Choose one word whose underlined part is pronounced differently from the others.