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

Câu hỏi

These houseplants ________ two days ago before we went on holiday.

A. watered

B. have watered

C. were watered

D. were watering

Đáp án
C. were watered

Câu hỏi thuộc Bài tập:

ĐỀ SỐ 12 - VŨ MAI PHƯƠNG