شرکت در آزمون آنلاین
زبان انگلیسی 1
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زبان انگلیسی 1
| آزمون شماره 8818
A/An ………. is a building especially designed for scientific study of such things as planets and stars.
Mom was smiling … at me, waiting for my answer. I never forget her beautiful smiles.
The pronoun “their” in paragraph 2 refers to … .
