— Are you still going to Shanghai for the Spring Festival?

— Yes, but I really _____ because I have a lot of things to deal with.

A．can’t

B．mustn’t

C．won’t

D．shouldn’t

惠农信用卡的放款及担保方式包括（）

A．信用贷款

B．保证担保

C．抵押担保

D．质押担保

E．信用、保证、抵押、质押的组合