Tính diện tích hình thang ABCD, biết A ^ = D ^  = 90°, C ^  = 45°, AB = 1 cm,  CD = 3 cm

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

“I really don't think that he'll attend the meeting tomorrow.”

A. I did tell you that he would attend the meeting the next day.

B. I will never forget his attendance at the meeting tomorrow.

C. I doubt that he will attend the meeting tomorrow.

D. I don't agree to his attendance at the meeting.