—Will you go fishing with me? —. A. No I'll be very busyB. Yes I'll be gladC. Certainly

问题补充：

—Will you go fishing with me?

—.

A. No, Ill be very busy

B. Yes, Ill be glad

C. Certainly, Ill be sorry

D. Certainly, Ill be glad to

答案：

A. No, Ill be very busy

B. Yes, Ill be glad

C. Certainly, Ill be sorry

(答案→)D. Certainly, Ill be glad to

解析：此处be dad后面要接to。若去不了，可以说But Im afraid I’U very busy或Sorry，but I can 或I’d like t0 but I’ll be very busy等。