She asked the secretary        she could come or not.

—Do you know _______he came?—I am not sure.  Maybe for the toy car.

The look on his face suggested that he just happened _______ the secret and _______ he himself was very shocked, too.

 His writing is so confusing that it's difficult to make out ________ it is he is trying to express.(2011·安徽)

----Could you tell me ________?----Bus No. 32 will take you right there.