Question

Пжл.. помогите )))

Вставитьположительные или отрицательные формы глагола can , to be able в правильном времени.

In very early times all the people on the Earth_________speak the same language.They lived together and ______ understand each other.If we all get together we________building a great city/If we________do it everybody will be happy.They________work really fast.Nowadays people ________spea many languages but most of them_________speak English. 

Answer 1

1. can

2. could

3. were able 

4. can

5. are able

6. can

 

(не уверенна)

Answer 2

1.can

2.could

3.will be able

4.can

5.can(сомневаюсь,не вижу перехода времени)

6.can

7.can