【正文】
e (go) out for a trip, you should make sure you take a map with you. 2. Before crossing the street, we must wait till the traffic lights (turn) green. 3. Don’t leave the room until you (tell) to. 4. It won’t be long before our dream (e) true, if we all try our best. 5. — Did you go to bed early last night? — No. I didn’t go to bed until the football match (be) over. 6. You can play puter games only when your homework (finish). 7. John is a true friend. Whenever he (need), he will give a helping hand. 8. We will go to the cinema as soon as my father (return) home. 9. Edward (