Rewrite each sentences, using the words provided 3. They insisted on my coming early => They insisted that _____________________ 4. An accountant needs to master computer science => It is necessary that _____________________________ 5. It's time for us to leave now => It's time we _________________

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`3.` They insisted that I come early.

`->` S + insist that + S + (should) + V

`4.` It is necessary that an accountant master computer science.

`->` It + be + necessary + that + S + (should) + V

`5.` It's time we left now.

`->` It's time/about time/high time + S + Ved : Đã đến lúc

`=` It's time/about time/high time + for sb + to V