3/Since the beginning of this century,too many natural resources have been used.
4/桐基He is the only student who was late this morning.
5/As far as we know,Africa is world'局中谨培晌s second largest continent.
3since this century, too many natural resources have been used.
4he is the only student that was late this morning.
5As far as we know, Africa is the second largest continent in the world.
4)Since this century, too many natural resources have been used. 5)He is the only boy who was late for school this morning.
1.Since the beginning of this century, too many natural resources have been used
2.He is the only student who was late this morning
3.As far as we know,Africa is the second-continent in the world
3. Ever since the start of this century, too many natural resources have been put into use.4. He is the only student late for today. 5. As far as we know, Africa is the second largest safari in the world.
3.Ever since the beginning of this century, too much natural resource has been used.