1. Tet is the time ______________. A. at that time people in Vietnam congratulate spring’s start B. when Vietnamese people celebrate the beginning of spring C. while Vietnam’s people welcome spring’s beginning D. then Vietnamese people wish the start of spring 2. Christmas is the time for people ______________. A. will give and receive gifts B. to give and receive gifts C. giving and receiving gifts D. with giving and receiving gifts 3. David didn’t come to class for five days, ______________. A. so someone knows where is he B. with anyone knows where he is staying C. but everyone knows where he stay D. and no one knows where he is 4. Don’t buy the expensive apples; ______________. A. get the cheaper ones B. you should buy the cheaper one C. please take the cheaper things D. you’d better purchase the cheaper others 5. Someone called while you went out, ______________. A. but she left a message B. and he didn’t leave a message C. but they didn’t leave a message D. and it did leave a message 6. Vietnamese New Year celebration ______________. A. lasts at least three days B. which lasts at least three days. C. last at least on three days. D. it lasts at least three days.