We will go for a picnic if it________ this Sunday.

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If there is a lot of traffic，it's better________ as slowly as you can.

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If you________ the queue，other people won't he pleased.

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She is the last one，and we________ her.

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If you are ill，you must________.

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A．watch the doctor

B．see the doctor

C．see the hospital

D．watched the doctor

Mary didn't go to bed ________ everything was ready for the party.

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Mary will go to Hong Kong for a holiday. I'll go with her ________ I have time.

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--Do you still remember ________ he came here?

--Yes, I do. He came by bus.

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________ you can't answer this question, we have to ask someone else for help.

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The teacher asked me ________ I needed any help.

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