Read the following leaflet and mark the letter A, B, C, or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 7 to 12.

How to protect our ecosystems
Global warming and deforestation are destroying our valuable ecosystems and harming the animals and plants that live in them. There are a ___(1)___ of things we can do to stop these problems and protect the Earth’s ecosystems.
⮚ Firstly, we must try to use only energy-saving products. For example, we should use electric cars ___(2)___ gasoline-powered cars, and everyday products like refrigerators and televisions that are energy-saving. These products don’t use a lot of electricity that ___(3)___ greenhouse gases. In this way, we reduce greenhouse gas emissions that harm ecosystems.
⮚ ___(4)___ way to protect our ecosystems is to plant trees. The more trees we have, the more we can ___(5)___ on the CO2 already in the air. By doing this, we reduce global warming and its harmful ___(6)___ on the environment.
In conclusion, we can help protect our ecosystems by taking many important actions such as using energy-saving products and planting trees. Our actions can make a difference and make our planet a better place to live.
(Adapted from Bright)