Complete correct form of the verbs .
Complete correct form of the verbs.
1 All languages_(change) over a period of time.2 English_ (develop)very rapidly. 3 How many people_(speak) Chinese? 4 I _ (not think) American English is very different from British English. 5 Millions of people_ (watch) satellite TV every day.6 The percentage of non-English web pages_ (grow).7 What languages_people_(study) in China?8 What _you _(study)this year?