Insert "to be able to" in the gaps.pay attention to the conjunctions. 1)i to do these tests,because i work hard. 2)nigar to understand the words of this song as she knows many english words. 3)my brother has many guialities and he to use modern computers. 4)they know four foreign languages and they to travel many countries. 5)students to integrate the world education system.
2 is able
3 is able
4 are able
5 are able