题文
---Do the Smiths live next door to you?
---No, but they _________.
| A.used to | B.used to do | C.are used to | D.used to be |
---Do the Smiths live next door to you?
---No, but they _________.
| A.used to | B.used to do | C.are used to | D.used to be |
试题篮
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