大家帮我看几道英语选择题需要正确率谢谢

大家帮我看几道英语选择题需要正确率谢谢
The thief stole the TV,the DVD player,the computer,and the printer while we _______.Nobody heard a thing!
1.have been sleeping
2.were sleeping
3.have slept
4.had slept
Listen.What a wonderful song!I heard that song a lot while I was growing up.Whenever I hear it,I _______ about my hometown.
1.am thinking
2.think
3.thought
'4.ll be thinking
Sarah broke her foot,and now she can't drive.Luckily,her sister said,"Don't worry about a thing.I _______ all your errands for you until you can drive again."
1.run
2.'ll run
3.'m running
4.'m going to run
It was April 13,1952.The march began at daybreak.By evening the soldiers were exhausted.They ___________ since dawn in the hot,dry sun and still had a long way to go before they could find water and a place to rest.
1.are marching
2.had been marching
3.were marching
4.have been marching
The acrobat was amazing.First he did a headstand.While he _______ on his head,he started to juggle five oranges with his feet.He did this for a whole minute!
1.stands
2.stood
3.was standing
4.had been standing