Uncle is coming by _______ train tomorrow．

Let's go to ______ railway station to meet him．（　　）

A．a； theB．/； aC．/； the

There are ________ students in our school．（　　）

A．hundredsB．hundreds of

C．hundred of

David，is that ______ English dictionary？

Yes，it is _______．It is new．（　　）

A．yours；myB．your；myC．your；mine

We ______ for a picnic if it ______ rain this Sunday．（　　）

A．will go；doesn'tB．will go；won't

C．go；doesn't

_______ do you visit your grandfather？

Once a week．（　　）

A．How manyB．How soonC．How often