29.Turn on the television or open a magazine and you ____ advertisements showing happy families .A.will often see B.often seeC.are often seeing D.have often seen为什么选A,请详解,并翻译这句话,

turn on the light turn on the radio turn on the Turn on the lights. Turn on the TV.______time______bed. turn on the light switch. Turn On the Radio 歌词 turn on the light switch. Turn on the computer是什么意思 turn on the camera是什么意思 Don't push,let's get on the bus_____.on turn in turn by turn turn by turn turn right on the bookstore如何改 please turn on the light ..怎样回答 翻译“turn on the radio”英文 Turn the power off and on again Turn right on the bookstore找错 shall I turn on the light? Turn on the light的中文是什么?