Chia đông từ trong ngoặc sang hình thức đúng : a/ ……….. There (be) a stereo in the living room ?z b/ He ( not, go )…………………. to the library on Sundays c/ Her father ( be) …………… an engineer d/ ………….. She ( do ) ……………… her housework today ? e/ There ( be ) …………….. three chairs and a table in the kitchen f/ My mother often ( get ) …………… up early at 4a.m g/ The weather in summer (be)…………… often hot h/ We ( not , be ) …………………. teachers i/ My uncle ( go) ………………… abroad next month j/How old ………. you (be ) ……. on your next birthday ?