Choose the right variant

1 This book will take to years to write.

A. After two years I'll write this book

B. In two years time I'll have written this book

C. After two years I have written this book

2. Whose watch is this?

A. To whom does this watch belong to?

B. Whom is this watch belonging to?

C. To whom is this watch

D. Who does this watch belong to

3. I ... him befor but I didn't know his name.

A. saw

B. Had seen

C. Have seen

D was seeing