Câu 18: What is the percentage of Earth's surface which is covered by water? A. 71% B. 75% C. 65% D. 81% Câu 19: Are scientists looking for other planets to accommodate our increasing population? A. Yes, they are. B. Yes, it is.C. No, it ín't D. No, they aren't.
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24 tháng 6 2019
C
“percents” -> “percent”
Số chỉ % không chia số nhiều, giống như million hay billion
N
10 tháng 4 2019
IV. Read the passage and choose the correct answer (A, B, C or D).
Earth, our beautiful home planet, is the only astronomical object to accommodate life (23) . . . . . we know it. Scientists believe Earth was (24) . . . . . approximately 4.5 billion years ago. It is the fifth-largest (25) . . . . . in our solar system. Its equatorial diameter is about 12,074 kilometres. Earth is the third-closest planet to the sun. The distance from Earth to the sun is roughly 149,600,000 kilometres. It (26) . . . . 365,3 days for Earth to orbit the sun, and 24 hours to rotate on its axis. The surface temperature ranges from -88 to 580C. Nearly 70 percent of Earth's surface is covered by ocean, (27) . . . . has an average depth of about 4 kilometres. In 2015 it was estimated that 7,3 billion humans are living on Earth.
23. A. as B. so C. because D. that
24. A. find B. formed C. found D. built
25. A. system B. planet C. star D. sun
26. A. has B. takes C. gets D. begins
27. A. what B. that C. which D. where
Câu 18: A
Câu 19: A