1.-Where is your mother now?
-She is___business and she will be ___holiday next month.
A on,on B in,in C by,on D for,in
2.His father is very busy.He is a man ___business.
A on B for C at D in
答案是1.A
2.D
为什么同是business,前面的介词不一样呢?
解释一下
參考答案:前面on business是一个词组,意思为因公或正在工作.
后面in business表示从事于生意工作,in意思为从事于