Ex 6: Complete the sentences below using the correct form of given verbs.
1. The conference ( start) ......... at 9 a.m, so we'll have to set off early.
2. It's very gloomy weather, i think i ........ ( stay) indoors today.
3. The only direct flight ....... ( leave) at 5 a.m, which means an early start.
4. Sorry i'am late. I promise it .........( not/ happen) again!
5. " Have you heard from Luca recently ?" " He .........( get married) next month"
6. Gwen and Tom ........ ( go) to Mauritius for their honeymoon.
7. There's no hurry, the film ...... ( no/ start) until 9 p.m.
8.I normally leave work early on Friday, but this Friday i......... ( work) late.
Ex 9: 
essential                     worldwide                               career
1. Learning English will be useful for your furute ........... because many jods require it.
2. People speak English ............ They use it all around the world.
3. If you want to study in another country, it is .............. to learn English.