In your project，you have identifed important risks，and planned appropriate responses to the risks．Some risks e.g. possibility of natural disasters has been documented and accepted in your risk management plan．If there are risks that remain after you have taken these steps，then such risks are called______．

A．unidentifiable risks

B．residual risks

C．secondary risks

D．accepted risks

I'm _____________ a letter to my mum. [ ]

A. write

B. writes

C. writing