giúp mik vs thank
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Bài 2
1.When does your school new year start?
2. Where is the hotel?
3. When did you see her?
4.Who will Liz send these letters to?
5. What did her neighbour give her?
6. When did they return to America?
7.Why did she go to the doctor?
8. How did they travelled to USA?
9.Who bought a poster?
10. Why did she went to the doctor?
153 Dave is better at maths than Mary
154 If we plant more trees, the air will be fresher
155 Althought she is short,she still plays basketball
156 We have lived here since 15 years ago
157 How much do a cake and a orange cost?
158 The Mekong river is along river with 4,350 km lentgh,the Niger is along river with 4,200 km lentgh
159 If people throw rubbish into the right bin,they will keep the environment clean
160 Unless she works harder, she'll lose her job
161 If we use recycled products, we will save money.
162 Unless you keep your feet dry, you won't catch a cold
143 Ho Chi Minh is the crowdest city in Viet Nam
144 This is the first time I have visited this beutiful place
145 How much is a bowl of noodles?
146 I have learned English since 2000
147 We have never won a big match before
Hội thề Đông Quan là sự kiện có một không hai trong lịch sử, buộc tướng lĩnh của quân đội vốn tự vỗ ngực là “thiên triều” phải cúi đầu nhục nhã làm lễ đầu hàng và thề thốt giã từ dã tâm xâm lược, chịu tuân thủ mọi điều kiện do đoàn quân vốn bị chúng coi là “man di” đặt ra.
1 for helping
2 at playing
3 of singing - dancing
4 to seeing
5 of driving
6 in listening
7 on moving
8 of joining
9 to carrying
10 to getting
Do \(\overrightarrow{MN}=\overrightarrow{DA}\Rightarrow ANMD\) là hình bình hành
Theo giả thiết: \(\overrightarrow{AM}=\overrightarrow{BA}\Leftrightarrow\overrightarrow{MA}=\overrightarrow{AB}\)
Mà \(\overrightarrow{AB}=\overrightarrow{DC}\) do ABCD là hbh
\(\Rightarrow\overrightarrow{MA}=\overrightarrow{DC}\)
Lại có: \(\overrightarrow{MN}=\overrightarrow{DA}\Leftrightarrow\overrightarrow{NM}=\overrightarrow{AD}\)
Do đó:
\(\overrightarrow{NA}=\overrightarrow{NM}+\overrightarrow{MA}=\overrightarrow{AD}+\overrightarrow{DC}=\overrightarrow{AC}\) (đpcm)