Use the given words to make meaningful sentences

Làm + giải thích tại sao lại làm như vậy.
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VI. Use the given words to make meaningful sentences.
1. I/ delighted / receive / your letter.
2.
The child / not tall enough / reach / shelf.
3.
He / eager / come back home at Tet.
4.
It/ very important / keep / environment/ clean.
5.
She / lucky / have / a lot of good friends.
6.
We / very happy / live / together.