David (get) on a bus now. Mr. Parker (already/buy) souvenirs for his children. The children (not/come) to the assembly hall yet. Yersterday Mike (write) correctly at the English lesson. Last weekend my parents (not/take) photos.

1. Henry was an officer in the US Army.(False) Henry was a major in the US Army. 2. Henry went to London to get educated.(False) Henry decided to go away for a holiday and to do some sightseeing. 3. In London Henry went to visit his friend who was a doctor.(False ) It was a long journey and when Henry came to London he didn’t feel well. He asked a clerk in the hotel where he was staying to give him the name of a good doctor, whom he could trust. 4. Dr Martin Smith was a very good doctor.(True) Dr Martin Smith was educated in Oxford and all his patients liked him for his wisdom and honesty. 5. Dr Smith's patients paid him fifty pounds for their first visit.(False) His patients pay him 15 pounds for their first visit to him, and 10 pounds for later visits. 6. Henry decided to save five pounds.(True) . Henry was a little greedy, besides he didn’t have enough money, so he decided to save 5 pounds. 7. The doctor explained to Henry that he had to take five different medicines.(True) . The doctor examined Henry and then said, “Everything is going on just fine. Continue to take the medicine I gave you last time.

There are a big veriety of insects, but i want to speak about fly. It's one of wiedly spread insect in the world they live everywhere: in our houses, in parks e.t.c
Of course they looks ugly, but they make useful things such as collecting rubbish. But also this insects have disadvantages too and this disadvantages are really very serious! The mail problem of them it's their ability  to spread infections.
In conclusion i want to add that we need to overcome problems which connected with insects, but we mustn't kill them, because insects also make a lot of usefull things for us.