Question

There ________ many people ________ in the office, but now nobody is allowed to．

A. used to be; smoking
B. used to have; smoking
C. used to be; smoke
D. used to have; smoke

Answer 1

答案A
“过去曾经有……”用“There used to be…”表示；“有人干某事”用“There be someone doing sth．”表示。故选A。