All the pictures in this book, ______ otherwise stated, come from those taken by Miss Brown.
It is generally considered that the key ______a foreign language well is nothing but practice.
If _______, I will go to visit your new house tomorrow.
.If you want to travel in this city, you’d better rent a car. It is not easy to ________by bus here.
Be careful not to drive so fast, ____you will be fined by the police.
.They are forbidden ________,for they are still middle school students.