—I’d like to know_______．

—At 6．30．

A．when does your mother usually cook breakfast

B．how your mother usually cooks breakfast

C．when your mother usually cooks breakfast

D．how does your mother usually cook breakfast

I'd like to know __________or not.

 I'd like to know __________or not.

A．whether will he come                    B．if he has come

C．whether he will come                    D．that he will come

I'd like to know________subject you like better，English or maths．

1. A.
   whose
2. B.
   what
3. C.
   which
4. D.
   whether