Exercise 1. Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions. (1.6 points)

Câu hỏi

Alexandre _ out of the window when dark clouds _

A. was looking - were appearing

B. was looking - appeared

C. looked - appeared

D. looked - were appearing

Đáp án
D. looked - were appearing

Câu hỏi thuộc Bài tập:

Alexandre _________ out of the window when dark clouds _________