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Question 34: While Tom and I ____, someone ____ at the door.

• A. were talking - knocked
• B. were talking - was knocking
• C. talked - knocked
• D. talked - was knocking

Question 35: While the teacher was explaining to the whole class, she ____ carefully.

• A. didn't listen
• B. wasn't listening
• C. had listened
• D. wasn't listened

Question 36: When we were on a voluntary tour, we ____ to public places to collect rubbish every day.

• A. were going
• B. went
• C. have gone
• D. had gone

Question 37: They are going to treat drinking water and widen roads in_________areas.

• A. private
• B. remote
• C. accessible
• D. secret

Question 38: The phone was engaged when I called. Who ____ to?

• A. were you talking
• B. were you talked
• C. did you talk
• D. have you talked

Question 39: He feels_________about teaching English to children in remote areas.

• A. excited
• B. hopeless
• C. helpful
• D. interested

Question 40: While Lan ____________ as a volunteer in the countryside, she met an old friend.

• A. was working
• B. worked
• C. had worked
• D. worked

Question 41: I was revising for my civics class when my dad ____________ me about the volunteer job.

• A. tell
• B. was telling
• C. told
• D. had told

Question 42: Last Sunday, our volunteer team ____ a lot of food packages to homeless people in the flood-hit region.

• A. were bringing
• B. brought
• C. have brought
• D. had brought

Question 43: I ____ near the fence when suddenly I ____ the voices.

• A. stood – heard
• B. stood - was hearing
• C. was standing – heard
• D. was standing - was hearing