Some wild animals _____ and killed at such a speed that they will disappear from the earth in the near future.

(2014·河南省实验中学月考)It is reported that a similar technique can be________to the treatment of cancer.

—I phoned you at 7 yesterday evening but nobody answered.— Oh, I ______ my dog in the park then.

If we use the new recycling method, a large number of trees         .

—Hey! Here is a message on my cell phone, telling me to send money to… —Delete it! It’s a trick. Many a person           by such tricks.