How can we fight _____ pollution?
Which of the following underlined parts is different in pronunciation from others?
We shall not lose heart in the face of difficulties. Which of the following is correct for the underlined word in the sentence?
A: David, remember to turn off the lights before leaving the house.B: ________
A: I’m really sorry to have broken your beautiful vase.B: ________
________ exciting our life will be in the future with so many wonderful inventions!