chọn câu trả biết
1 They ............. students yesterday.
a) am b) is c) was d) were
2 They .............. doctors two years ago
a) am b) is c) was d) were
3 They ............... farmers last month.
a) are b) is c) was d) were
4 We ............. nurses yesterday.
a) are b) is c) was d) were
5 The weather ............ cold yesterday .
a) aren't b) isn't c) wasn't d) weren't
6 I ..............a pupil last week.
a) aren't b) isn't c) wasn't d) weren't
7 These hats .............. new yesterday.
a) aren't b) isn't c) wasn't d) weren't
8 My parents .......... teachers two years ago
a) aren't b) isn't c) wasn't d) weren't
9 He ............... a mechanic last Monday.
a) aren't b) isn't c) wasn't d) weren't
10 ............. he an engineer yesterday . No, he .......
a) are / aren't b) is / isn't c) was / wasn't d) were / weren't
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