单选.1.English is ___ useful language.We must learn it well.A.a B.an C.the D.不填
问题描述：
单选.1.English is ___ useful language.We must learn it well.A.a B.an C.the D.不填
2.You can follow these steps ___ a printed T-shirt.
A.make B.to make C.making D.made
答
第一题选A,第二题选B.