Mountain hiking is -----usual activity.A.a B.an C.the D./ 应选

This is a ( ) useful advice A a B an C the D 应选哪一个 they decide in the mountain A.hiking B.on hiking C.to hiking they decide __in the mountain A.hiking B.on hike C.to hike D 英语翻译Hiking is an activity of going out for a long walk for r Hiking is an activity of going out for a long walk for fun.的 Hiking ia an activity of a long walk原文 Why don"t you _ there?A hiking B go hiking C going hiking D 英语翻译4.An animal is bound to a ）locate b ）depend c ）activity This is a book ( )and book is new A.an B.a C.the D./ look!() eraser is on the desk,whose is it?A .A B.An C .The D There is -------"a" in the word "arm".A.a B.an C .the D./ we are thinking about---in the mountain A.go hiking B.going