Trắc nghiệm ôn tập
You should see a doctor if your nosebleed__________ by an injury, such as a punch.
Câu hỏi:
You should see a doctor if your nosebleed__________ by an injury, such as a punch.
A.
caused
B.
were causing
C.
was caused
D.
will be caused
Đáp án đúng: C
Đăng bởi: Monica.vn
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