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He didn't play football
They didn't tidy their rooms
She didn't dance at the party
We didn't visit our grandparents
You didn't watch TV
I didn't help my dad
He didn't study the exam
You didn't live in London
We didn't play tennis
a) he didn't play basketball
b) They didn't tidy their rooms
a: Trên cùng một nửa mặt phẳng bờ chứa tia Ox, ta có: \(\widehat{xOA}< \widehat{xOB}\)
nên tia OA nằm giữa hai tia Ox và OB
b: Ta có: tia OA nằm giữa hai tia Ox và OB
\(\Leftrightarrow\widehat{xOA}+\widehat{AOB}=\widehat{xOB}\)
hay \(\widehat{AOB}=42^0\)
c: Ta có: tia OA nằm giữa hai tia Ox và OB
mà \(\widehat{xOA}=\widehat{AOB}\)
nên OA là tia phân giác của \(\widehat{xOB}\)
plays
visit
is doing
is going
does
is going to meet
is swimming
will come
gets
is listening
plays/ is playing
drives/ is driving
is raining/ rains
speaks/ is speaking
rises/ is rising
am doing/ do
studies/ is studying
likes/ is repairing
going
to play
is visiting
is watching
doesn't have
playing
cây táo cao số mét là :
25 - 6 = 19 mét
Đ/s : 19 mét
\(HT\)
21.B
22.C
23.A
24.D
25.A
21-D
22-C
23-A
24-D
25-A
#H