Revise the phrasal verbs of units 1—4 and complete the sentences with talk, hand, give, make in their appropriate forms.
1. In July Mr Benham handed in his new novel to the publisher.
2. It was time to start ___ up for the evening performance.
3. Larry ___ out sandwiches to the children and then went to the kitchen to bring drinks.
4. Don’t you dare ___ back to me like that!
5. She never completely ___ up hope. She always tried to look on the brighter side.
6. It’s sometimes difficult to ___ out what they say over an airport loudspeaker.
7. We tried to ___ Rod out of buying such a big car.
8. The test was easy and I ___ it in to my teacher long before the bell.
9. When Otto saw me, he ___ off at once. I feel that he hates me.

1. If number of speakers decrease, some languages will be endangered.
2. If Internet reaches all corners of the world, English as the Net language will influence the culture of non-speaking countries.
3. If English keeps on being global, other languages won’t set foot on Internet. 4. The world’s linguistic experts will be alarmed if many languages disappear at an alarming rate.
5. If some tribes aren’t urbanized and assimilated into mainstream, their languages won’t die out.
6. Youngsters will be able to communicate with people from abroad, if they learn foreign languages.
7. If the EU wasn’t worried about endangered languages, they wouldn’t issue a special directive on preserving them.
8. If minority languages aren’t politically tolerated, they will be in jeopardy.
9. If the high number of languages spoken in the EU corridors, it would be like a Tower of Babel.
10. If English is the language of trade and diplomacy, it will be considered as lingua franca nowadays. 

We always hear many students complain about having to study math or chemistry, even when they don't want to become a doctor or an engeneer. And it's possible to understand, it is actually true, the majority of the students won't even use math in the future. however, it is still important to study compulsory subjects. First of all, there are thousands of jobs that require knowing mathematics, even the final exam mark will matter to a college or the university you'll apply to. Actually, everyone uses math whether they realize it or not. In our everyday life we count in stores to find out how much something costs, and in the future things like that will stay important as well. Math helps us with other subjects, like physics and chemistry. A lot of math problems help the students to solve tasks in physics.