1. Despite  I was tired, I stayed up late to complete my homework.

2. Staying in a hotel is more comfortable than Camping.

3. My son used to read comic books every night when he was nine.

4. You can take photos in the museum.

1. A local festival is different from an international festival in its scale.

2. The next semester starts on 5th January.

3. Although the bus was late, I still arrived at school on time yesterday.

1. Schools have breaks and typically during Tet holiday.

2. People will use cars self-driving to travel around cities more easily.

3. You must show your passport at the airport security check.

a) Vì góc A'AB và góc ABB' là hai góc so le trong

nên góc A'AB = góc ABB'

Suy ra đường thẳng A'A song song với đường thẳng BB'

b) Vì góc A'AB và góc ABB' là hai góc so le trong

nên góc A'AB = góc ABB'

Vậy góc A'AB = góc ABB'

a) Vì góc EFN và góc MNC là hai góc đồng vị

nên góc EFN = góc MNC (hai góc đồng vị)

suy ra đường thẳng EF song song với đường thẳng MN .

b)

Vì góc XAN và góc NAM là hai góc so le trong

nên góc XAN = góc NAM (hai góc so le trong)

suy ra đường thẳng Ax song song với đường thẳng NM.

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