sandstorm ________ Beijing several times in the last few yea

the sandstorm weather_____in Beijing several times this year Mary ,your telephone ----several times in the last hour. The last few years ________ the remarkable changes in shangh I will do that by looking back in time over the last few yea in the last few beijing was attacked by such a terrible sandstorm ---- few r Beijing was such a terrible sandstorm( )few citizens had eve in the last few hours,my sister ( )her badroom three times IN the last few years Beijing ()greatly Ahas changed Bhas be in the last few years 29.The telephone ________ four times in the last hour,and ea 完形填空!急!my parents and i spent a few weeks in london last yea