I
iloveg8
1.There are about 500 species of poisonous snakes, 200 of them are harmful to men.
2.If only man had been a bit less greedy, more bird and animal species might have been avoided extinction.
3.It was first discovered several years ago that the former senator, once respected by many, were involved in extortion and other crimes.
4.Humming birds are the only birds capable to fly backward as well as forward, up and down.
5.A lunch of soup and sandwiches do not appeal to all of the students
Câu 1: them---->which
Câu 2: might have been avoided----> might have avoided
Câu 3: were---> was
Câu 4: to fly----> of flying
Câu 5: do----> does