Kites . . . . . . . available in many colours and shapes. A. have B. are C. do D. many

The correct answer is B. Kites are available in many colours and shapes.

A. Kites have many colours and shapes. This is incorrect because it is not the kites that have the colours and shapes, but the kites that are available in many colours and shapes.

C. Kites do many colours and shapes. This is incorrect because kites do not do anything, they are simply objects that are flown in the air.

D. Many kites. This is incorrect because it is not the kites that are many, but the colours and shapes that are available in many kites.

In conclusion, the correct answer is B. Kites are available in many colours and shapes.