Hợp chất nhôm nitrat có công thức hóa học là :Al(NO3)3.Phân tử khối của nhôm nitrat có giá trị bằng :biết nguyên tử khối của Al :27 N:14 O:16

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. Choose the best answer to complete the sentences 1. Where an I find English books, please? - They are……………the racks in the middle. A. On B. At C. In D. Of 2.Ba has a large …………of foreign stamps. A. Collect B. Collecting C. Collector D. Collection 3. What about ……a new play? A. Rehearsing B. Rehearses C. To rehearse D. Rehearse 4.My father has a farm. He.........cattle and chickens on his farm A. Grows B. Raises C. Is growing D. Is raising 5. My date of birth is September the………… A. Ninth B. Twenty one C. Thirty D. Fourteen 6. Mai learns…………to use a computer in her Computer Science class. A. What B. When C. How D. Where 7. I………14 on my next birthday A. Will be B. Will am C. Am D. Will 8. We study past and present events in Viet Nam as well as different countries in……… A. History B. Literature C. Geography D. Physics 9. Students have two…………each day A. 20-minutes breaks B. 20-minute break C. 20-minutes break D. 20-minute breaks 10. American students do not usually ………school uniforms A. Go B. Have C. Wear D. Buy 11. My father / never / drink / coffee / in / afternoon A. My father drinks never coffee in the afternoon B. My father never drinks coffee in the afternoon C. My father never drinking coffee in the afternoon D. My father never drink coffee in the afternoon II. Complete the dialogue with the words given SOMETIMES ; SHOULD ; SPORTS ; ALWAYS ; SUBJECT ; AM Hoa : What are you doing, An? An : I (1)……………………learning English Hoa : You work too much. You (2)…………relax An : OK. Let's go swimming Hoa : Great idea ! Do you often go swimming? An : Not very often. I (3)........go swimming. What do you often do after school, Hoa Hoa : I play badminton. Which(4)…………do you usually play after school? An : I play soccer. III. Rewrite the sentences so that they have the same meaning as the given ones. 1. Should we play volleyball after school? Why don't we ………………………… 2. His father works more hours than my father. My father ……………… 3. This computer is very modern What…………… 4. Lan is giong to visit Hue next month. Lan will………………… IV. Make uo the sentences from the words given. 1. I / enjoy / play / volleyball. …………………………………………… 2. My brother / be / good / fixing things ………………………………………………………