問題詳情：
補全對話。
A: Look, Mona! 1.____________________________________?
B: Oh, it's a computer. It is widely used in today's world.
A: You are right. Do you know 2.__________________?
B: Yes, it was invented in 1946.
A: 3._________________________________?
B: It is used for helping us work, study, send e-mails and so on.
A: 4.__________________________________?
B: It is said that it was invented by some American scientists.
A: By the way, what are you going to be when you grow up?
B: 5.___________________________ and invent many useful inventions for our motherland.
A: OK. Let's work hard to make our dreams come true.
【回答】
What’s this in English?
When it was invented?
What’s it used for?
Who was it invented by?
I want to be a scientist/an inventor…
知識點：補充句子
題型：補全對話
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