100

1

how

100

16

Do you remember the old days __ we played soccer.

100

9

that

100

10

The day will come ___ computers will have a mind.

200

4

The reason ___ he quit the company is not clear. 

200

5

when

200

8

This is the only shop near here ____ is open after midnight.

200

11

where

300

7

why

300

2

This is the shop ___ my brother is working.

300

14

The school ___ I graduated from is not far from here.

300

12

The department store ___ I bought this shirt is on that street.  

400

3

which

400

13

when

400

6

This is ___ I go to school every morning.

400

15

where