—We are planning to have a casual get-together this Saturday or Sunday. Are you coming?

— ________. I’ve got rather a busy day this weekend.

A．I hope so

B．Sounds great

C．You’d better not

D．I’m afraid not

The president of the World Bank says he has a passion for China, _______ he remembers starting as early as his childhood.

A．where

B．which

C．what

D．when