【C19】A．forB．onC．backD．out

I look ______ to speaking with you.A: forwardB: onC: backD: in

【29】A．forB．onC．byD．with

【C14】A．hold upB．give upC．give backD．drop out

【C19】A．put upB．put onC．put offD．put out

I always______my childhood as the happiest time of my life.A．look out forB．look back onC．l

【C6】A．forB．evenC．onceD．often