Youbuyanewtoyonline.   61  shouldcometoday.Knock,knock....

问题详情：

You buy a new toy online.    61   should come today. Knock, knock. You open the door, but can’t see a delivery person. Instead, a drone (无人机)    62   (put) the package at your door!

It may sound   63   something from a science fiction movie. But drone delivery is    64  (real) happening around the world.

Amazon is one of the world’s    65   (big) online shopping companies,    66   used a drone to deliver goods in the United Kingdom on Dec. 7. The drone took a bag of popcorn and a smart TV stick. It    67    (fly) for 13 minutes to get to a customer’s home.

In the United States, 7-Eleven used a drone to deliver a sandwich and coffee to a customer in July. Meanwhile, in China, S.F. Express, China Post and all tried    68   (deliver) goods by drone this year.

But the drone can’t deliver everything. Take Amazon as    69    example: Packages    70  (weigh) more than five pounds (2.3 kg) can’t be delivered. It can only happen during the day. Also, the drone can only deliver a package in clear weather.

【回答】

61. It        62. has put     63. like         64. really     65. biggest

66. which    67. flew       68. delivering     69. an       70. weighing

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