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【題目】_________ more and more forests damaged, some animals and plants are facing the danger of dying out.

【題目】—Hi, let’s go skating.

【題目】A new ________ bus service to Tianjin Airport started to operate two months ago.

【題目】Wild swans’ ________ in the area is a good indication of a better environment.

【題目】How did the woman feel about the movie?

【題目】I remembered _____ the door before I left the office, but forgot to turn off the lights.

【題目】After two years’ research, we now have a _______ better understanding of the disease.

【題目】There were more than 80 passengers on board then, but only one boy named David____the airplane crash.

【題目】When will the plane arrive?

【題目】Where are the two speakers?