Mark the letter A, B, C, or D on your answer sheet to indicate the cor

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Question 13: My mother ______ lunch while my father _____ the floor at 10 am yesterday.

• A. was cooking/was cleaning
• B. cooking/cleaning
• C. cooked/cleaned
• D. was cooking/cleaned

Dấu hiệu: “while, 10a.m yesterday” ⇒ thì QKTD

Dịch nghĩa: Mẹ tôi đang nấu bữa trưa trong khi bố tôi đang lau nhà lúc 10 giờ trưa hôm qua.