【C3】A．inB．onC．ofD．to

Don’t be too hard（) the child.A inB onC ofD out

We had warned him（) the danger but he turned a deaf ear to our warning.A inB outC ofD on

【C3】A．inB．forC．ofD．at

Please remember to remind me______the appointment.A．aboutB．onC．ofD．in

A．inB．onC．atD．to

【C9】A．inB．onC．byD．to