My shoes are dirty. I'd better take them ________before I come in.

My sister is very tired; ________, she still has to cook dinner for the family.

We can ________ easily in the daylight.

Your house needs _________ right now because it's too old.

Children are _______ to overcome problems.

The children ate too much sweet ________ they get toothache easily.

Can you turn_________ the lights? It's too dark.

We decided not to go out for meal _________ we were too tired.

He is very stubborn, so it will be difficult to _______ him to go.

I've never ______very well with my brother. We've got completely different personalities.

Scientists are looking for an ________ way to reduce energy consumption.

Who is Mr. Medley? - I have no idea. I've never heard _______ him.

Old newspapers can be used to make newspapers, ________ you can collect them and bring them to the recycling center.

Organically grown fruits and vegetables may not look as perfect, ________ they're good for your health.

____ lion dancing is very popular in Viet Nam, my friend Andy does not enjoy it

What are you looking ________? My picture book. I've lost it.

That's the _______ interesting novel I've ever read.

The countryside is very peaceful ________ the air is so fresh.

Ba missed the Math test yesterday. ________, he will have to do it next week.

________ we use less electricity, power plants will burn less fuel.

My color TV, _______ I bought 10 years ago, still gives beautiful pictures.