1. They make footballs in that factory.
2. People must not leave motorbikes in the driveway.
3. They build the skyscraper in 1934.
4. The students will finish the course by March.
5. They are repairing the old building this month.
Welcome to the board, mariamtariq.
TheParser is right. You try first.
We don't do your homework.
Rover
1. Foot balls are made in that factory.
2. Motorbikes should not be left by people in the driveway.
3. In 1934,the skyscraper was built by them.
4. By March course will be finished by the students.
5. The old building will be repaired this month.
***** A NON-TEACHER's COMMENT *****
(1) I agree with kiwi man: you have done a great job.
Congratulations!!!
(2) May I just point out a few things?
(a) In sentence No. 2, the auxiliary verb is "must," so it might
be helpful to keep it: Motorbikes must not be left in the driveway (by
people). (As you know, the "by ..." part is usually not necessary.
But this is an exercise, so we shall keep it.)
(b) "Footballs" is one word.
(c) No. 3 is fine. I would personally prefer "The skyscraper was
built in 1934 by them."
(d) As kiwi man suggested, a "the" in front of "course" would be
very helpful.
(e) No. 5 can be very confusing:
They are repairing the building this month.
Did you notice the "-ing"? Well, that means that we also need
an "-ing" in the passive:
The building is being repaired this month.
Respectfully yours,
James
thank you all for helping me out....now i can understand the difference more easily.