Mr. Brown usually (start) teaching on time. But he (start) ...

★ Present Tense vs Present Continuous

Mr. Brown usually (start) teaching on time. But he (start) his classroom 5 minutes later at this moment.

A. is starting, starts

B. is starting, is starting

C. starts, is starting

D. starts, starts

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The sun (not/shine) brightly today. The sky is about to rain.

A. do not shine

B. not shine

C. is not shining

D. does not shine