Важно. Помогите с английским.
1 The quality of concrete needs improving. 2 The schedule needs revising. 3 The sand needs covering. 4 The wiring needs inspecting. 5 The contract needs going through. 6 The trench needs filling.
1.The quality of concrete needs improving. 2.The schedule needs revising. 3.The sand needs covering before it starts to rain. 4.The wiring needs inspecting. 5.The contract needs going through. 6.The trench needs filling by 5 p.m.