3:
1-b
2-a
3-a
4-c
5-b
6-b
4:
1- I've got some blue and white checked shorts.
2-My sister often wears plain black trousers.
3-Where's my red and white spotted handkerchief?
4-My dad likes plain white shirts.
5-They wear a striped black and grey jacket for school.
6-My brother has a patterned red and white bow tie.