Why don’t you _____ your teacher for help when you can’t finish _____ it by yourself ?

A．ask; write

B．to ask; writing

C．ask; writing

D．asking; write

痢疾饮食应（）

A.禁食荤腥

B.禁食油腻

C.进食生冷

D.严禁饮食

E.进食清淡