Change these sentences into passive voice?

Chuyển Bị động và Chủ động bất kì:

1) Do they teach these subjects in this year?

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2) Are the dishes washed by mother everyday?

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3) Can they make tea with hot waten?

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4) Will the meeting be held before 5P.M?

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5) They may use this room for the bedroom.

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6) When I came, They were bruinking a cup of tea.

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7) Someting musn't be done before it's too late by us.

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8) Are they going to tell stoines to night?

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9) This picture hasn't been drown in the park.

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10) How many are books bought in the store by him?

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11) Should the sewing be helped to make clothes by them?

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12) They are making flowers if sillk in the room.

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13) Were these trasher recyled by them yesterday?

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14) He is asking me a lot of question.

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15) A dinner had been prepared before we come by Lan

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GiÚP MÌNH GẤP NHÉ! MÌNH CẢM ƠN!