Khoanh tròn đáp án đúng. 1.Dad’s ..... work right now. He is a teacher. A. on. B.at. C.for. D.by. 2.Look at that clear blue sky ! It ....a beautiful day. A. is. B.will be. C.was. D. is going to be 3.I hope you...a good time at the moment in Greece! Phone soon A. are having B.have C.has D.had

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