There are some trees in front of the classroom. （對劃線部分提問）

Dave has a family photo. （改為一般疑問句）

Where is my cassette? （改為復(fù)數(shù)形式）

small, a, collection, Sue Hall, has, sports （連詞成句）

He only watches them on TV. （對劃線部分提問）

Does your mother have a ring? （作否定回答）

They have video cassettes. （改為否定句）

Mike has a tennis racket. （改為一般疑問句）

(用適當形式填空) Welcome ______ （they） to the club.

(用適當形式填空) Where ______ （be） my parents? At home.