1) Mike said he was sure Ann and Kate would be excellent guides. 2) He said they had made good progress in English. 3) Oleg said that one or two days later several English students would come to pay a visit to their university and he would probably have to act as an interpreter. 4) Ann said she had just met Boris in the street. 5) She said Boris had told her a lot of interesting things about his travels in the south. 6) Nick said he was going to the hotel to see his friends who had just arrived in St. Petersburg from the USA. 7) He said they hadn't been there for a long time. 8) He said they had been friends at school. 9) He said he would take them to the theatre on Sunday. 10) They said they would write me a letter when they returned home.
Penicillin is a group of antibiotics derived from Penicillium fungi, including penicillin G (IV use), penicillin V (oral use), procaine penicillin, and benzathine penicillin (intramuscular use).Penicillin antibiotics were among the first drugs to be effective against many previously serious diseases, such as syphilis and infections caused by staphylococci and streptococci. Penicillins are still widely used today, though many types of bacteria have now become resistant. All penicillins are β-lactam antibiotics and are used in the treatment of bacterial infections caused by susceptible, usually Gram-positive, organisms.
2) He said they had made good progress in English.
3) Oleg said that one or two days later several English students would come to pay a visit to their university and he would probably have to act as an interpreter.
4) Ann said she had just met Boris in the street.
5) She said Boris had told her a lot of interesting things about his travels in the south.
6) Nick said he was going to the hotel to see his friends who had just arrived in St. Petersburg from the USA.
7) He said they hadn't been there for a long time.
8) He said they had been friends at school.
9) He said he would take them to the theatre on Sunday.
10) They said they would write me a letter when they returned home.