Finished
spent
was spending
using
<span>1. Does the city of Montreal cover 70 square miles?
2. Are scientists in many different countries working to explain its mystery?
3. Have BBC experts </span><span><span>recently </span> invented a new system that lets the deaf understand television programs?</span><span>
1. The city of Montreal does not cover 70 square miles.
2. Scientists in many different countries are not working to explain its mystery.
3. Recently BBC experts have not invented a new system that lets the deaf understand television programs.</span>
№2
в первом столбце: is
во втором столбце:has not got
в третьем столбце: hasn't got
isn't
№4
1. His hen can't fly.
2. His pig hasn't got a hat.
3. His rabbit isn't grey.
Я думаю, что подходит: need