DÀNH CHO MỌI LỚP 6 ĐẾN 12
It’s hard to concentrate when you are tired.
Giải chi tiết:
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It was ___________ good music that I couldn’t stop dancing.
Sheila works _________ an accountant in a large company.
I love going to the mountains _______ the winter.
A lawnmower is a machine __________ is used for cutting grass.
