A brief grammar guide (very informative) and three nice exercises practicing the structure “Complex Object” both in speech and in writing.
Ex. I. Look at the pictures and say what Mr Brown wants the people to do. Put down the sentences.
Ex. II. Say using the phrases on the right. Put down the sentences.
Ex. III Write what your parents usually a) want you to do (2 sentences),
b) expect you to do (2 sentences),
c) would like you to do (2 sentences).

Enjoy!