Which beach are you going to Which room do you live in.这2句里分别哪个是介词

Which beach do you usually go和Which beach are you going to which beach are you going to?什么意思 are you beach? Which beach are you going to Which room do you live in.这2句里分别哪个是介词 Which beach are you going to?结尾为何要加to那“Where are you going ”呢？是以“which”提问的才加“to”吗？ YOU ARE MY SUN OF BEACH 是什么意思? Which dr.are You? we are going to Sandy Beach对sandy beach 提问 （）（）（）you going to? you are the son of the beach的意思 are you beach lady?有什么不好的含义吗? i think you are beach.中文意思是? which country are you in? which grade are you in? Which are you in school? Which school are you in? Which class are you in? Which class are you in? Which city you are now?