M:I am not sure when to leave for the lecture.
W: But it’s already fifteen to eight.
M: Take it easy. Fifteen minutes is quite OK.

What time will the lecture begin（）

A. He had caught a very bad cold.
B. He had eaten some unripe bananas.
C. He had worked too hard recently.

A. Put some sugar in the water.
B. Prevent roses from the sunshine.
C. Put a little vinegar in the water.