I …………… on the bus when I dropped my wallet.
I …………… on the bus when I dropped my wallet. A. am getting B. get C. have gotten D. was getting Câu trả lời là: …
Công thức nguyên hàm và tích phân
I …………… on the bus when I dropped my wallet. A. am getting B. get C. have gotten D. was getting Câu trả lời là: …
We ………………….. in the plane for hours when it finally, took off. A. had been sitting B. have sat C. will be sitting D. will …
Before the police arrived, the robbers …………………….. A. run B. had run C. have run D. have been running Câu trả lời là: B là …
Paul and Linda ………….. us to their party last weekend. A. was inviting B. invited C. had been inviting D. will invite Câu trả lời …
It …………… a lot last winter. A. snows B. has been snowing C. snowed D. snow Câu trả lời là: C là đáp án đúng
Louise was listening to the radio while she ……………… the house. A. is cleaning B. was cleaning C. had cleaned D. will dean Câu trả …
We ………….. to the baseball game when it started to rain. A. are driving B. drives C. driven D. were driving Câu trả lời là: …
The Wagners ……………. to Florida two years ago. A. moved B. had been moving C. move D. will move Câu trả lời là: A là …
Mr. and Mrs. Wilson ………….. some disputes with their neighbors. A. having B. have been having C. have having D. have been had Câu trả …
I …………….. the house before you called. A. leave B. am leaving C. had left D. had been leaving Câu trả lời là: C là …