安全生产的特种人员未取得操作资格证书的不得上岗作业。
参考答案:对
Sally used to be ______, but now she enjoys meeting and talking to new friends.
A.active
B.shy
C.honest
D.outgoing
Susan Jones was at the bus stop well on time to take the 7:01 bus, but she had to miss her breakfast to do it.
A.catch up with
B.catch
C.run up to
D.be catching