A. He apol
C. He apologizes for having to leave early
47. I don't have enough money with me now, so I don't buy the glasses.
A. If I didn't have enough money with me now, I would buy the glasses.
B. If I had enough money with me now, I would buy the glasses.
C. If I had enough money with me now, I wouldn't buy the glasses.
D. If I didn't have enough money now, I wouldn't buy the glasses.
48. The shop sells expensive computers. I met my old friends in the shop.
A. The shop which I met my old friends sells expensive computers.
B. The shop where I met my old friends sells expensive computers.
C. The shop in where I met my old friends sells expensive computers.
D. The shop, where I met my old friends, sells expensive computers.
49. The mobile phone didn't work. I took it to the store to check.
A. The mobile phone which I took it to the store to check didn't work.
B. The mobile phone which I took to the store to check didn't work.
C. The mobile phone, that I took to the store to check didn't work.
D. The mobile phone that I took it to the store to check didn't work.
50. They refused to attend the meeting because of their busy schedule.
A. Because their schedule is busy, they refused to attend the meeting.
B. Although their schedule is busy, they refused to attend the meeting.
C. Due to their schedule was busy, they refused to attend the meeting.
D. Because their schedule was busy, they refused to attend the meeting.