circle the bracketed words or phrase in each sentence that needs correcting and then correct it
1(do) you( know) the school (where) he( used) to study at
2 it (took)the (director ) two hours (explaining) the new plan (to) us
3 this lesson (is) (such) long (that) i (have written) it for 30 minutes
4 (a large number of students) in this school (speaks) french (fairly fluenty)
5 we can (prevent) floods (by) (preservation) (the forests)