问下哈at a present什么意思

问下哈at a present什么意思 in the present,at the present分别为什么意思?还有：in the present,at present,at the present这三个短语有什么区别?做题时应如何选择呢? be present at意思+++++++++++++ ed is opening a present什么意思 at any time up to the present什么意思 at present 什么意思?还有它的用法,谢谢 at the present time 和at present一个意思吗 present什么意思 Present什么意思 give present什么意思 at present,in present,for present,with present的各个意思及用法 in the present 和at present 的区别in the present 和 at present 意思好像都差不多.但高中英语必修1顶尖第29页第2题：Forget about it.We live ____,not the past.A,in the present B.at present C.nowadays D.for present我是选B,但A draw a present for your birthday什么意思? what if everyone brings a present什么意思 in the present和at present有什么区别 present和at present分别代表什么如题~ At present ,there is only one thing can make me happy 什么意思? We cannot take care of your enquiry at present.这句话什么意思