It is uncertain           side effect the medicine will bring about, although about two thousand patients have taken it.

The settlement is home to nearly 1,000 people, many of           left their village homes for a better life in the city.

Jack, try to learn some relaxation exercises and do them ______ you feel stressed.

There is no doubt ______ they all passed the examination.

— What do you think of Jenny?
— Well. She is pretty, but I don’t like the way ____ she stares at me.

If you keep on ignoring the teacher’s advice, you will probably get into a situation______ you fall behind others in all subjects.

He must be from America, ____ can be judged from his accent.

I don’t know why she’s looking at me ______ she knew me. I’ve never seen her before in my life.

The police stopped the car______ speed was more than 120km per hour.

Mike had just finished his lunch and was about to take a break _____ an unexpected visitor came.