You will be able to get good marks ________.

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A．while you are doing your homework by yourself

B．if you do some revision every day

C．before you begin to study hard

D．until you follow your teachers' advice

Now children, turn to page ________ and look at the ________ picture in Lesson Two.

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He made a lot of mistakes in the exam ________ he was careless.

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I'm off to St. James Park ________ I have to give a lecture.

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The tourists ________ visiting the West Lake and other scenic sports in our country.

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Cut up three bananas and six mushrooms, ________?

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Here ________.

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It will take her some time to put her plan ________ action.

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Will you please show me ________ to get to the post office.

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________ money do you need?

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