There _____ lots of old houses here. But now we can see
| There _____ lots of old houses here. But now we can see only tall buildings. |
| [ ] |
| A. used to have B. used to be C. was used to be D. was used to have |
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你能帮帮他们吗
| There _____ lots of old houses here. But now we can see only tall buildings. |
| [ ] |
| A. used to have B. used to be C. was used to be D. was used to have |
你能帮帮他们吗