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【題目】It’s reported that none of the sporting events will take place________ COVID-19 can be controlled.

【題目】I will tell him to call you when my father _________ back.

【題目】—________ is it from Euro-Disney to the centre of Paris? —It's just an hour’s ride.

【題目】Middle school students have to reach a certain ________（標準）in exams, or they will not graduate.

【題目】What the boy said made his mother even ________（發瘋）.

【題目】— How long have you______ the bike ?

【題目】—Have you been ________(出國)? —Yes. I’ve travelled to Thailand.

【題目】________ the age of 15, Li Yundi became famous _______ playing the piano.

【題目】_______ number of boys are playing _______ basketball on the playground.

【題目】_________ (compare) with traditional classes, online courses give us more choices to learn what we want.