Thời kì "Ăn lông ở lỗ" là nét đặc trưng củaA. Bầy người nguyên thủy. B. Vượn cổ. C. Người tối cổ. D. Người tinh khôn.
Với giá trị nào của m thì phương trình ${{x}^{2}}-mx+4=0$ có nghiệm kép:A. m = 4 B. m = – 4 C. m = 4 hoặc m = – 4 D. m = 8
Cho phương trình $2{{x}^{2}}+2\sqrt{6}x+3=0$ phương trình này có :A. Vô nghiệm B. Nghiệm kép C. 2 nghiệm phân biệt D. Vô số nghiệm
Choose the best answer for the following sentence:A ____________ is a special place in which vou remember and praise a famous person, who was dead. A. capital B. garden C. shrine D. site
Choose the best answer for the following sentence:Mai: “Did you revise our Geography lessons?”Tuan: “No, I ____________ it.”A. am checking B. to check C. check D. checked
Find a mistake in the four underlined parts of the sentence and correct it:That's the man who daughter is studying with me.A. That's B. who C. is studying D. with
Choose the best answer for the following sentence:_____________ Mr. Le was rich, he wasn’t a happy man in all his life.A. However B. Therefore C. Because D. Although
Choose a word that has different stress pattern:entrapment encouragement ensure engineerA. entrapment B. encouragement C. ensure D. engineer
Choose the word that has the underlined part pronounced differently from the rest: dinner drink dive childrenA. dinner B. drink C. dive D. children
Choose a word that has different stress pattern:barbecue government discover beautifulA. barbecue B. government C. discover D. beautiful
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