2. When I came to visit her last night, she ________ dinner. A. is having B. was having C. has D. had 3. He began to feel ill while ___________________. A. he is doing the exam B. he did the exam C. he will do the exam D. he was doing the exam.

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2. When I came to visit her last night, she ________ dinner.

A. is having

B. was having

C. has

D. had

-> When + S + QK, S + QKTD.

3. He began to feel ill while ___________________.

A. he is doing the exam

B. he did the exam

C. he will do the exam

D. he was doing the exam.

-> S + QK + While + S + QKTD.

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