Help completing a word in a sentence
American rapid-prototyping experts believe it is only a matter of time before such machines (A/B/C) common and nurses will be using them as broutinely as they currently use x-rays. Moreover, in a few years these ingenious machines will be able to produce replacement body parts such as teeth, bones and even entire organs.
a become - b have become - c would become
Why is the answer A rather than B?
The missing word is according to the time it is Present perfect simple.
Please if anyone knows why it is, and can bring tips that I will know the next few times will appreciate very much, thank you
Top answer
The author is talking about what is likely to happen in the future . The present perfect is for something that is completed in the recent past. The present tense serves purpose of establishing a condition that occurs some time in the future.
- The author is talking about what is likely to happen in the future .
- The present perfect is for something that is completed in the recent past.
- The present tense serves purpose of establishing a condition that occurs some time in the future.
- g.
- Before we go to the opera, let's make sure we have the right tickets.
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The author is talking about what is likely to happen in the future.
The present perfect is for something that is completed in the recent past.
The present tense serves purpose of establishing a condition that occurs some time in the future.
e.g. Before we go to the opera, let's make sure we have the right tickets.
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