Choose the suitable suffix for each verb. Companies try to advert their products in every possible way. If you want to use this computer program, you have to activ it first. His parents regul how much TV he can watch. Astronomers class space objects into different groups.

Задание

Choose the suitable suffix for each verb.

Choose the correct option.

Companies try to advert[ate|en|ify|ise] their products in every possible way.

If you want to use this computer program, you have to activ[ate|en|ify|ise] it first.

His parents regul[ate|en|ify|ise] how much TV he can watch.

Astronomers class[ate|en|ify|ise] space objects into different groups.