Choose the best answer A, B, C or D to complete the sentence. Question 10: This problem is hard to solve _________ it’s very complicated. A: because B: so C: but D: although

2 câu trả lời

Question 10: This problem is hard to solve _________ it’s very complicated.

A: because

B: so

C: but

D: although

Question 10: This problem is hard to solve _________ it’s very complicated.

A: because

B: so

C: but

D: although

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