1.Is learning/had been lerning
2.Are discussing/ have been discussing
3.Is working/is working/has been working
4. Is/has been
5.Teachs/has been teaching
6.Know/have known/have known
What did they leave two days ago?
Where is a mashroom?
What does she collect?
Where will tey go?
<span>This
is where the astronauts live , Cool , would say vy.Zhizn in zero
gravity , so do a lot of things that are different from everyday
zhizni.V can forget about a warm shower because there's just a drop of
water uplyvut.Krome , the muscle becomes weak there because that
there is no gra<em />ity, so that they are 2 hours a day coach on exercise
bikes and rowing trenazherah.Kazhdy day astronauts brush their station
because harmful bacteria grow rapidly in nevesomosti.Edu they go into a
special tray that she would not uletela.Gryaznuyu clothes they sent
back to zemlyu.Avstronavty can sleep anywhere , but they can not take a
chance to stumble on the remote control , so they are tied to the
sleeping bag straps on stene.V free time they send a letter home , but
most of all love to look out the window and take pictures of their real <span>house .</span></span>
1) I felt a snowflake fall on my hand.
2) We noticed Andrew entering the classroom.
3) I never expected him to do such a thing.
4) She saw her son driving up to the cottage and coming in.
5) They watched their friends playing volleyball.
6) He has never heard his aunt singing.