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Dear teachers,

I have been confused about the correct use for the future and future continuous tense. Please help me with the following practice.

In less than a century, global warming _______(melt) most of the polar ice caps and many coastal cities _______(disappear).

Thank you.

lcchang
Comments  
What are the instructions for the practice?
Are you supposed to make one of these simple future and the other one future continuous?
Or can you make both of them simple future? Or can you make both of them future continuous?

CJ
I don't know. That's why I asked for help. There might be only one answer to each blank. Sould we fill in the future tense or future continuous tense here? I think only a native speaker knows how to do it.
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Wait! I think I have already found the answer.

Neither the future nor the future continuous tense would have to be used here, but "Future perfect tense". In less than a century is the key to using such tense.

In less than a century, global warming will have melted most of the polar ice caps and many coastal cities will have disappeared.

Correct me if I am wrong.

Lcchang
Hi,

Welcome to the Forum.

This is fine.

Clive
Given the choices, I would use simple future for both blanks.

CJ
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I second that!
Can the expression 'in less than a century' trigger the present perfect?

In less than a century, global warming has melted most of the polar ice caps.
Yes, but that would indicate that the polar ice caps started melting less than a century ago and have vanished now Emotion: smile
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