First, they should have right ideas of things, ideas that are based on careful observation, and understand causes of effects and their significance correctly.

an inclusion in the cytoplasm of the cell

Don't be afraid to show yourself through speech and take every opportunity to speak to others in English and soon you will feel right at home in informal conversational situations.

She deliberately ignored me on the street.

My boss dictated a letter for his secretary to type.

The mist was so dense that I could not see even an inch ahead.

First, swallow one dose of barium.

I guess she's into bondage and domination.

31 people have some sort of disability.

hesitates to be explicit on so ticklish a matter