Cho tam giác ABC cân tại a (ab=ac).gọi D,E lần lượt là trung điểm của AB và AC Chứng minh tam giác ABE bằng tam giác ACD Chứng minh BE=CD Gọi k là giao điểm của BE và CD.chứng minh tam giác KBC cân tại K

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Bài 1: Điền trợ động từ ở dạng phủ định. 1. I ………. like tea. 2. He ………. play football in the afternoon. 3. You ………. go to bed at midnight. 4. They……….do the homework on weekends. 5. My brother ……….finish work at 8 p.m. Bài 2: Chọn dạng đúng của từ. 1. Police catch/ catches robbers. 2. My dad is a driver. He always wear/ wears a white coat. 3. They never drink/ drinks beer. 4. Lucy go/ goes window-shopping seven times a month. 5. She have/ has a pen. Bài 3: Điền dạng đúng của từ trong ngoặc. 1. She (not study) ………. on Saturday. 2. He (have) ………. a new haircut today. 3. I usually (have) ……….breakfast at 6.30. 4. My mother often (teach)……….me English on Saturday evenings. 5. I like Math and she (like)……….Literature. Bài 4: Viết lại câu, điền đúng dạng từ trong ngoặc. 1. My brothers (sleep) on the floor. (often) =>____________ 2. He (stay) up late? (sometimes) => ____________ 3. I (do) the housework with my brother. (always) => ____________ 4. Peter and Mary (come) to class on time. (never) => ____________ 5. Why Johnson (get) good marks? (always) => ____________ Bài 5: Viết lại thành câu hoàn chỉnh. Eg: They/ wear suits to work? => Do they wear suits to work? 1. she/ not/ sleep late on weekends =>________ 2. we/ not/ believe/ ghost=>________ 3. you/ understand the question? =>________ 4. David/ want some coffee? =>________ 5. when/ she/ go to her Chinese class? =>________ Bài 6: Hoàn thành đoạn hội thoại sau bằng cách điền đúng dạng từ. My cousin, Peter, (have)……….. a dog. It (be)……….. an intelligent pet with a short tail and big black eyes. Its name (be)……….. Kiki and it (like)……….. eating pork. However, it (never/ bite) ……….. anyone; sometimes it (bark)……….. when strange guests visit. To be honest, it (be)……. very friendly. It (not/ like)……….. eating fruits, but it (often/ play)……….. with them. When the weather (become)……….. bad, it (just/ sleep)……….. in his cage all day. Peter (play)……….. with Kiki every day after school. There (be)……….. many people on the road, so Peter (not/ let)……….. the dog run into the road. He (often/ take)……….. Kiki to a large field to enjoy the peace there. Kiki (sometimes/ be)……….. naughty, but Peter loves it very much.