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banyigeumsoo101
2 năm trước
Xe đạp thời xưa có một bánh to bán kính 24cm, một bánh nhỏ bán kính 12cm. Hỏi rằng khi bánh xe lớn lăn được 16 vòng thì bánh xe nhỏ lăn được bao nhiêu vòng?
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*Put the verbs in brackets in the present simple or the present continuous tense . 1 / I ( have ) __________coffee for breakfast every day . 2 / My brother ( work )__________ in a shoe store this summer . 3 / The student ( look )__________ up that new word now . 4 / She ( go )__________ to school every day . 5 / We ( do ) __________this exercise at the moment . 6 / Miss Helen ( read) __________ a newspaper now. 7 / It ( rain ) _________very much the summer . It ( rain ) now . 8 / Bad students never ( work ) _________hard . 9 / He generally ( sing )_________ in English , but today he ( sing ) _________in Spanish 10 / We seldom ( eat ) _________before 6 . 30 . 11 / She sometimes ( buy )_________ vegetables at his market . 12 / Be quiet . The baby ( sleep ) _________ 13 / We always ( do ) _________our exercises carefully . 14 / Look . A man ( run ) _________after the train . He ( want ) to catch it . 15 / It ( be ) __________very cold now . 16 / John ( travel )_________ to England tomorrow 17 / I ( need )_________ some money for my textbooks . 18 / Tom ( like ) _________to go to the museums. 19 / Mary ( love )_________ ice - cream . 20 / My mother ( cook ) _________some food in the kitchen at present . She always ( cook ) _________ in the mornings .

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