1.The little girl began to do the housework when she came home. A.The little girl has done the housework when she came home. B.The little girl has been doing the housework since she came home. C.The little girl have done the housework since she came home. D.The little girl has begun to do the housework when she came. home. 2.No one in my village sings more beautifully than Nga. A.Nga sing the most beautifully in my village. B.Nga sings the most beautifully in my village. C.Nga sings the most beautifully than anyone in my village. D.Nga sings the most beautiful in my village. 3.The Kinh's population is larger than any other peoples in my country. A.The Kinh have a larger population in my country. B.The Kinh have largest population in my country. C.The Kinh has the largest population in my country. D.The Kinh have the largest population in my country. 4.My students did their final test in 60 minutes. A.My students spend 60 minutes doing their final test. B.My students spent 60 minutes doing their final test. C.My students took 60 minutes to do their final test. D.My students spent 60 minutes to do their final test.