33.Peter was so excited ______he received an invitation from his friend to visit Shanghai.

32.Ladies and gentlemen, please remain _____until the plane has come to a complete stop.

31.It’s raining heavily outside .We are _______to go out for the picnic as planned.

30.Just be patient. You ________ expect the world to change so soon.

29.________, his suggestion was taken by all the people at the meeting.

28.It is generally considered that the key ______a foreign language well is nothing　　　 but practice.

27. If _______, I will go to visit your new house tomorrow.

26.If you want to travel in this city, you’d better rent a car. It is not easy to ________by bus here.

25.Be careful not to drive so fast, ____you will be fined by the police.

24.They are forbidden ________,for they are still middle school students.