Mrs brown never (miss) .. her trains busses or planes . she always (come) on time 8 where the usually (change) .. trains? 9 they (rebuild) .. the old cathedral in the centre of the city. 10 any army (defend) its country from the enemy

7. misses, comes
8. если вместо "the" "they", то можно Where do they usually change trains?
9. are rebuilding/have rebuilt (в зависимости от условий в упр)
10. defends/would defend  (в зависимости от условий в упр)