Supply the correct tenses of the VERBS in bracket in either active or passive voice
Every ten minutes, one species of animal, plant, or insect ______(1. die) out for ever. If nothing is done about it, one million species that are alive today ______(2. become) extinct twenty years from now.
Fortunately, somebody is trying to do something about it. In 1961, the World Wildlife Fund _____(3.found) - a small group of people who ______(4. want) to raise money to save animals and plants from extinction. Today, the World Wildlife Fund is a large international organization. It _____(5. raise) over 35 million pounds for conservation projects, and has given support to National Parks in six continents. It _______(6. help) 30 mammals and birds - including the tiger to survive. Perhaps this is not much, but it is a start.
If more people_____ (7. give) more money - and if more governments wake up to what ______(8. happen) - perhaps the World Wildlife Fund____ (9. be) able to help us avoid the disaster that ______(10. threaten) the natural world, and all of us with it.
Trả lời câu hỏi dưới đây:
______(2. become)