Write defining relative clause sentences using who or which and the sentences in brackets

EX4: Write defining relative clause sentences using who or which and the sentences in brackets.
1. I looked up at the sky. (The sky was full of stars.)
I looked up at the sky which was full of stars.
2 That man in the post office is my neighbour. (He just walked in.)
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Trung tâm Chí Thành 6 GV: Phan Bích
3 Joan has straight hair. (She looks unattractive with curly hair.)
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4 The bus I take to work was late this morning. (The bus is usually on time.)
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5 Were building our house. (It will be finished next week.)
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6 A woman opened the door. (She looked very old.)
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7 They gave us their phone number. (We wrote their phone number in our address book.)
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8 I often go for a ride in the countryside. (The countryside is 30 minutes from where I live.)
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