84.My mother told me the light_______ (travel) much faster than sound.
83.You_______ (get) well if you take the medicine.
82.There_______ (not be) an important talk on science next Monday.
81.While the Reads_______ (have) supper, the bell rang.
We live in the“computer age”.People like scientists,writers,teachers and even students use computers to do 41 work.But more than 30 years ago, 42 couldn’t do much.They were very big and expensive.Very 43 people were interested in them and knew how to use them.Today computers are smaller and 44 . 45 they Can do a lot of work,many people like to use them.Some people even have them at home.
Computers become very important because they Can work 46 than men and make fewer mistakes.Computers Can 47 people do a lot of work。Writers now use computers to write.Teachers use them to study and children use them to play games.Computers can also remember what you put 48 them.Computers are very 49 and helpful.They are our good friends.
Do you want to 50 a computer?
41.( )A.many of B.all kinds of C.a lot D.very much
42.( )A.scientists B.teachers C.students D.computers
43.( )A.few B.little C.a few D.a little
44.( )A.cheap B.cheaper C.expensive D.more expensive
45.( )A.But B.And C.Since D.If
46.( )A.slow B.slower C.fast D.faster
47.( )A.help B.make C.use D.stop
48.( )A.in B.into C.on D.up
49.( )A.beautiful B.careful C.useful D.heavy
50.( )A.pay B.sell C.lend D.have
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