2/3 + 2/15 + 2/35 + 2/63 + 2/99 =?

Phân loại các từ ghép sau đây thành từ ghép chính phủ hay từ ghép đẳng lập: nảy nở, tươi cười, cá mú, áo dài, cà chua, xanh biếc, học tập, bút mực, thầy cô, túp lều. làm ăn, quạt giấy.

V. Rewrite the sentences so that they are nearest in meaning to the sentence printed before them. 26 Dr. Nelson: The heat from its sun made Kepler-452b lose its oceans. Dr. Nelson said 27 Mai: How old is Kepler-452b - the Earth's cousin? Mai asked 28 Nick: The recycling system of the ISS supply 4 liters of water a day. Nick said 29 Duong: How can the astronauts wash their hair, Mi? Duong asked Mi 30 Mi: They use no-rinse shampoo and a towel to wash their hair. Mi said

trong một bình đựng chất lỏng,áp suất chất lỏng gây ra gần lớn ở đâu

1 hình thoi có diện tích 300 cm2 một nửa đường chéo là 50 cm tìm đường chéo còn lại

IV. Choose the underlined word or phrase (A, B, C or D) that needs correcting. 21 "I'll finish the work by the end of this week.” John (A)promised (B)finishing the work (C)by the end of (D)this week. a. promised b. finishing c. by d. this week 22 "You ought to take a break, Andrew." (A)She (B)advised Andrew (C)to takes a (D)break. a. she b. advised c. to takes d. break 23 "Don't forget to go to the supermarket after work.” (A)They reminded (B)to goes to the (C)supermarket (D)after work. a. they b. to goes c. supermarket d. after 24 “Why don't we sing a few songs?" He (A)suggested we (B)sang a (C)few (D)songs. a. suggested b. sang c. few d. songs 25 She told me, “I am going to the party with my mother”. She (A)told me (B)she (C)is going to the (D)party with her mother. a. told b. she c. is d. party

Giải thích lí do điền như vậy. ________________________________________ 1. My Brother( sleep) on the floor(often) →My brothers often sleep on the floor. 2. He(stay) up late( sometimes) →Peter and Mary never come to class on time. 3. I (do) the housework with my brother(always) →I always do the housework with may brother. 4. Peter and Mary (come) to class ob time (never) →Peter and Mary never come to class on time. 5. You (go) shopping?( usually) →Do you usually go shopping?

I. Choose the word whose underlined part pronounced differently from that of the others. 1 a. planet b. adventure c. galaxy d. solar 2 a. surface b. trace c. danger d. space 3 a. terrorist b. trek c. Venus d. Neptune II. Choose the word whose main stress pattern is not the same as that of the others. 4 a. adventure b. messenger c. poisonous d. Jupiter 5 a. alien b. planet c. explore d. weightless III. Choose the word or phrase (a, b, c or d) that best fits the blank space in each sentence. 6 Scientists claimed that there __________ eight planets in our solar system. a. are b. were c. was d. is 7 This water is __________ poisonous that people here can’t drink. a. too b. so c. enough d. such 8 I love __________ at pictures of the galaxy very much. a. seeing b. watching c. looking d. viewing 9 Space __________ is the main vehicle for astronauts to travel on the Moon. a. buggy b. system c. surface d. planet 10 I’m curious about the __________ space of the Earth. a. alien b. weightless c. outer d. poisonous 11 The atmosphere on Mars is quite similar __________ that on Earth. a. to b. on c. at d. with 12 Have you ever seen a flying __________? a. danger b. saucer c. outer d. painter 13 Neil Armstrong is considered as the first person __________ on the Moon. a. step b. steps c. stepping d. to step 14 I can’t stand __________ with such a talkative person like her. a. talking b. talk c. talked d. to talk 15 There have been some traces proving the __________ of aliens. a. exist b. existence c. existing d. existed 16 It was so kind of him __________ me when I was homeless a. accommodate b. to accommodate c. accommodating d. accommodated 17 Our lives are in __________ because of pollutions a. danger b. saucer c. surface d. system 18 The astronaut wears a __________ to protect him from the dangers of being outside in space. a. spacesuit b. swimsuit c. suit d. sleeping bag 19 Scientists think it is possible to send humans on a __________ to Mars by the 2030s. a. weight b. buggy c. mission d. trace 20 “What subject do you find the most difficult?” My mother asked. My mother asked what subject ____________ the most difficult. a. do you found b. I found c. did I find d. did I found

Chẹp, full xong rồi :Đ Vẽ semi , full line, màu, digi :Đ Có tâm có tầm thì hay nhất :Đ

Tính nhanh b, 5 x 4 + 4 x 6 + 9 x 2 + 18