ALEX DID NOT DO VERY WELL IN CLASS .A. THEREFORE HE WAS A GOOD STUDENT...

Câu 12: Alex did not do very well in class .A. therefore he was a good student B. as long as he had studied badlyC. because he failed to study properly D. although he was not hard-workingGiải thích: Câu này là m ệnh đề chỉ nguyên nhân – k ết quả được chia ở thì quá kh ứ đơn sử dụng liên từ“because”. Vì vậy C là đáp án đúng.