mn giúp mik với, mik đang cần gấp
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1.A
2.A
3.B
4.C
5.B
6.C
7.A
8.A
9.B
10.A
11.B
12.A
13.C
14.B
15.B
16.A
17.A
18.A
19.A
20.C
Ánh sáng yếu lắm , với cả chữ hơi khó đọc , hay viết tắt , nếu chứ khó đọc thì hãy viết mực xanh nhìn sáng với cả dễ đọc hơn nhiều đó bn .viết lại đi nếu biết mik trả lời cho nha okay !
a: -7/15=-28/60
5/12=25/60
b: 1/5=6/30
-2/3=-20/30
7/10=21/30
\(-\dfrac{7}{15}=\dfrac{-7.4}{15.4}=\dfrac{-28}{60};\dfrac{5}{12}=\dfrac{5.5}{12.5}=\dfrac{25}{60}\)
\(\dfrac{1}{5}=\dfrac{1.6}{5.6}=\dfrac{6}{30};\dfrac{-2}{3}=\dfrac{-2.10}{3.10}=\dfrac{-20}{30};\dfrac{7}{10}=\dfrac{7.3}{10.3}=\dfrac{21}{30}\)
11. were
12. weren't... were
13. wasn't
14. was your sister
15. Was Sam ill last night?
No, he wasn't
16. was
17. wasn't
18. were
19. Were the workers
20. were
11 were
12 weren't/were
13 wasn't
14 was your sister
15 was/wasn't
16 was
17 wasn't
18 were
19 Were the workers
20 were