Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following question. 

Max has to attend an event this weekend. He can't go on a picnic with his family.

A. If Max didn't have to attend an event this weekend, he could go on a picnic with his family.

B. Provided that Max has to attend an event this weekend, he can't go on a picnic with his family.

C. If Max had to attend an event this weekend, he could go on a picnic with his family.

Kiến thức: Câu điều kiện 

Giải thích: 

Câu điều kiện loại 2 diễn tả hành động không có thật ở hiện tại 

Tạm dịch: 

Max phải tham dự một sự kiện vào cuối tuần này. Anh ấy không thể đi dã ngoại cùng gia đình.

Choose A.