offer     walk     valuable      big      discover forget     harmful    important    exactly     watch

Eric spends half an hour     TV every evening.
My brother didn' t realize the     of English until he began to work in a Canadian factory.
She    where she parked her car yesterday, so it took her a long time to find it.
Every day after supper, my father     his dog in the park.
Smoking is     to your health, so you'd better give it up.
The house is     the same as it was 20 years ago.
This T-shirt is kind of small. Can you show me a     one?
Our teacher gave us some     advice on how to learn English well
The strueture(结构)of DNA was one of the most important    in the twentieth century.
He said he would drive rne home, but I turned down his    .