If you ______ our teacher, what would you tell her?
A.
are to see
B.
must see
C.
will be going to see
D.
were to see
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【单选题】Today, bicycles are elegantly simple machines that are common around the world. Many people ride bicycles for recreation, whereas others use them as a means of transportation. The first bicycle, calle...
A.
persuade readers to use bicycles for transportation.
B.
describe the problems that bicycle manufacturers encounter.
C.
compare bicycles used for fun with bicycles used for transportation.
D.
tell readers a little about the history of the bicycle.
【单选题】Today, bicycles are elegantly simple machines that are common around the world. Many people ride bicycles for recreation, whereas others use them as a means of transportation. The first bicycle, calle...
A.
The safety bicycle would look familiar to today’s cyclists.
B.
Two hundred years ago, bicycles didn’t even exist.
C.
The Michaux brothers called their bicycle a vélocipède.