The correct answer among the choices provided is the fourth option. Personal testimony was used by the speaker to prove his point. The speaker talked about his experiences on how Britain tried to stop the war in Europe. He is credible since he was a Cabinet member during that time.
Human being, because a human being walks on all fours in early life, on two legs as an adult and with a walking stick in old age.
I hope this helps you.
6. My parents (are going to a concert tonight).
7. The bus driver (is not driving carefully).
8. (Are) the pupils (decorating) the room at the moment?
10. They (are having) salesin all the big stores now.
The Bus
The bus (is coming). The passengers (are sitting) down. One woman (is giving) the driver the money. An old man (is reading) his newspaper. The young boy (is ringing) the bell. Two children (are running) for the bus. The bus (is stopping) and people (are getting) off of it.
Spring is Here
It is the beginning of spring. I can see through the window that it (is raining). The sun (is shining) and some flowers (are blooming). My brothers (are listening) to music and they (are discussing) the weather. Seems that the winter is over and there is so much to look forward to. A small dog outside (is running) and (barking) happily. He is (playing). I think that the best thing about spring is knowing that summer is just around the corner.