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______ providing entertainment, the website also turns out to be a helpful learning tool.

—I’m driving to Beijing after breakfast.

—Take care,   with all this fog.

—Have you understood what he really means?

—___________.

A turning point of the continuously high housing price won’t appear suddenly because there must be a certain process _____ many factors lead to the change.

—You may find the key to the math problem on page 107.

—Ah, it’s so simple. I wonder why I _____ of that.

Also when you write your goals in a particular way you are able to make yourself continuously ______ situations that will bring you nearer to your goal.

—This is my treat and next is yours. How’s that?

—OK. ____________.

—Don’t forget to go to the football match tomorrow.

—I ________.

According to a report, cigarette smoking____ in all indoor public places in China already.

— I need to advertise for a second-hand mountain bike.

— _______？David just plans to sell his present one.