So sánh tổ chức quân đội thời Lê So và Lý Trần.

1. We should                the sheet at the zebra crossing.

A. walk                    B. walk on                   C. walk through          D. walk across

2. Drivers have to                    their seatbelt whenever they drive.

A. put                       B. tie                           C. fasten                      D. put on

3. We should wait for the traffic lights                        before we cross the street.

A. turn green            B. to turn green           C. turn yellow             D. to turn yellow

4. All of us have to obey                      strictly.

A. traffic rules          B. traffic                     C. traffic jam              D. regular

5. Cyclists and motorists have to wear a                     when they ride a motorbike.

A. hard hat               B. cap                          C. mask                       D. helmet

6.He forgot to give a                before he turned left and got a ticket.

A. signal                   B. sign                         C. light                        D. hand

Write sentences, using the prompts and then correct form of used to.

1. We/ live in a flat when I was a child.

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2. People/ not have/ mobile phones 20 years ago.

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3. Jim/ go/ swimming every weekend?

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4. My father/ smoke/ but he gave up five years ago.

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5. Lily/ not cook/ much, but now she makes dinner every day.

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6. There/ be/ a supermarket on the corner?

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7. People/ not buy/ so much stuff as they do today.

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8. You/ play football or basketball at school?

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tsm giác nào là tam giác vuông, trong các tam giác có độ dài 3 cạnh như sau

a. 9m; 15m; 12m

b. 5dm; 13dm; 12dm

c. 7cm; 7cm; 10cm

đoạn lên dốc của con đê dài 8,5m; độ cao con đê bằng 4m. Tính khoảng cách từ chân dốc đến chân đê

MÌNH CẦN GẤP Ạ!