My first entry

Currently I'm studying english in an institute, and I want to improve my habilities using italki,

I don't use any grammar guide or any dictionary to write posts in here, so, please correct me any mistakes.

One task of today was to create 5 questions about a lecture, this questions need to be in passive voice and I need to show this tomorrow in class

so, if any one can correct me the questions for me or any other problem in my text, I appreciate the help

1) In Roman times what was sugar known as?
2) In 1943 where was the sugar plant taken to?
3) When the slaves were shipped across the Atlantic, how long did the journey take?
4) What has the sugar been used for?
5) Why did Elisabeth I lose her teeth?

I spent lot of time tinking if this sentences are correct or not, please help me :)

thank you

My first entry

Currently I'm studying English in an institute, and I want to improve my habilities using italki,

I don't use any grammar corrector or any dictionary for writing posts in here, so, please correct me any problems for me.

One task of for today's class was to create/compose/write 5 questions about a lecture; these questions need to be in passive voice and I need to show this tomorrow (not wrong exactly, but preferred last) in class tomorrow

So, if any one can correct me the my questions or any other problems in my text, I will appreciate the help

1) In Roman times what was sugar known as?
2) In 1943 where was the sugar cane(?) plant took taken to?
3) When the slaves were (plural) shipped across the Atlantic, how long was did the journey take?
4) What has the sugar been used for to?
5) Why was Elisabeth I, lost her teeth? (this one is not passive voice, choose another example) Why were Elizabeth I of England's teeth removed (awful example!)

I spend lot of time thinking if whether these sentences are correct or not, please help me :)

thank you

passive voice is mostly correct, except the last