1.        The dictionary ­­ _________ is sold out in the bookshop.

A. you need   B. what you need  C. which you need it  D. that you need it   

2.        Is this the shop ________ sells children’s clothing ?

A.      which  B. where  C. in which  D. what

3.        The reason ________ I’m writing to you is to tell you about a party on Saturday.

A. because  B.  why   C. for    D. as

4.        the reason _________ he was late for school was that he had been knocked down by a bike.

A. when     B . where    C. which   D. why