Complete this text using the verbs below. should (4) can (3) ought (1) have to (1) need (1) How to be a friend of the Earth. There are many simple things we ___ (1) all do to stop the destruction of the environment. Fir...

Complete this text using the verbs below. should (4) can (3) ought (1) have to (1) need (1) How to be a friend of the Earth. There are many simple things we ___ (1) all do to stop the destruction of the environment. First of all, we ___ (2) not dump our rubbish without thinking which things, such as bottles and paper, ___ (3) be recycled. We ___ (4) put objects that we ___ (5) recycle in recycling bins. Secondly, instead of taking our car wherever we go, we ___ (6) to leave it at home whenever possible, and go on foot or by public transport. If there is something wrong with our car’s exhaust pipe, we ___ (7) get it fixed immediately. When we ___ (8) to drive to the supermarket to do our shopping, we ___ (9) always remember to take our own bag, so that we don’t ___ (10) to use the supermarket’s plastic bags.