1.The teacher as well as the students is running on the playground.
2.It was from the early 1990s that the scientists started to develop new techniques.
3.He spent most of his time doing research into agriculture.
4.His book is a practical guidance for farming.
5.There are their clothes,make-up and the way they walk which make people.
6.I told him that he was dangerous to other people on the road.
7.We can smile to ourseleves in the mirror to make ourselves feel happier and stronger.
8.Go straight down this road and then turn left.
9.He cut off the clctricity quickly and prevented an accident.
10.Being ill,he didn't attend the meeting.