I_{1=\(\dfrac{R_2}{R_1+R_2}\times I_{12}\)}

cm giúp mình vs cố gáng nhanh nhanh giúp mình

50.I remember the day. I was afraid to use my new computer then.

51.I work in an office. In my office the software changes frequently.
52. The secretary gives you information. She sits at the first desk on the right.
53. The Southam Chess Club meets weekly on Friday evenings. It has more than 50 members.
54. My son is very intelligent. His friends all are good citizens.
55. Lan is my classmate. She lives near my parents’ house.
56. The young man is talking to our teacher. He is Ba’ s brother.
57. We visited the monument. The famous engineer built it more than 50 years ago.
58. The victims of the club need help. They were hafl-starved for many days

59. The baby was still alive. He was lifted and put down a hundred meters away by the tornado.
60. Ninety per cent of the earthquakes occur around the Pacific Rim. It is known as the Ring of Fire.
61. In the 1960s, a huge tidal wave hit Anchorage. The tidal wave traveled from California to Alaska.
62. The weather forecast program takes place at 8:00 pm every day. Some people like to watch it.
63. Hoa’ s parents buy a lot of candles and food. They’ ll use them in case the market is closed because of
the hurricane.
64. Mr Phong is our geography teacher. He has been teaching in our school for ten years.
65. A typhoon is a violent tropical storm. It can cause great destruction.
66. Violent tropical storms are called hurricane in America. They reach 120 kilometers per hour.
67. Mr. Tuan teaches us chemistry. His friends are also my friends’ father.
68. The children talked about the clowns and his animals. They saw them at the circus.
69. The tornado struck with a great force. It lifted the houses off the ground.
70. My classmates had so much fun at the carnival. They wanted to go there again
71. Lan took some change. She wanted to buy some drink.
72. The boys are very interested in football. It is a popular games all over the world.
73. The tourists visited China. They went to see the Great Wall and the old Kingdom in Beijing.
74. Her grandma wanted to listened to the news on TV. She was interested in the newsreel.
75. Dolphins are sometimes caught and killed in fishing nets. They often swim with other fish.
76. This is the simple house. Uncle Ho had lived there for a long time ago.
77. Mrs Lien is very smart. I met the son of her on the stage last night.
78. Mr. Quang is a famous cheft cook. His food can be enjoyed all over the wold.
79. Phong met that movie star in the perform. She looked really beautiful in her costumes.
80. Children like to eat ice-cream. It can cause toothache if they have too much everyday.
81. Thu wants to drink some medicine. She had a headache.
82. Lan went back home. Her child was seriously ill after the rain.

83. Mr. Tuan is very tall and thin. He is our gymmaster.
84. The lady in black is a famous writer. You met her at the party last night.
85. The little boy lost his way. He is crying over there.
86. The children are playing soccer in the stadium. Do you know them?
87. The river is the Saigon river. It flows through Ho Chi Minh city.
88. Mona was painted by Leonardo De Vinci. It has been popular for long.
89. SaPa is a famous city. Many visitors travel to this city for their holiday.
90. Easter is a festival. People will have a lot of fun in this occasion.
91. Quynh Dao is a famous writer. Quynh Dao’ s works are widely read all over the world.
92. Nam is an excellent student. His father’ s death made him sad a lot. 93. Teacher’ s Day is a day. All the students show their gratitude to their teacher on that day

94. Australia is a continent. It consists of many kind of animals all over the world.

95. Vu Quoc Viet is a famous artist. I love his works very much.

96. Ha Noi is an ancient city. Many customs are still on this lovely are

97. Kim Lien is a village. Ho Chi Minh was born and lived there.

98. Mai is my friend. She studies very well.

99. This book is very cheap. I bought it last week.

100. That house is lovely. I live in it last year

các giúp mình vs (nhanh nhanh hộ mình đc k )