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

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

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

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

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

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

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

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

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

I’m amazed to hear from my school teacher again. _______,it is ten years since we met last.