There are some spelling mistakes in your composition,butyour composition is good [ ]

May I______ your English-Chinese dictionary—-Sorry, I ______ it at home.

Having checked the doors were closed, and ________ all the lights were off, the boy opened the door to his bedroom

The novel was completed in 1978，the economic system has seen great changes．

If his brother a millionaire（百万富翁）, he’d buy her sister the expensive car.