I used to be undecided, but now I’m not so sure. I used tolike thatband and I still do. I used toknow a guy from the UK who pronounced "mother" without the "r". It used to be me, sitting in that chair. There used to be openfields here. Now it's a shopping mall.
I amused tocleaning upother people’s mess. I became used to his ways.
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用于句中
The Kaplan-Meier method, log-ranktesting, and Coxproportionalhazardsregressionmodels were used toanalyze the associationsbetween immunosignals and outcome.
It used to be that songs could not spellthingsout, but it is moreliberalnow.
It takes time to getused to having a step-parent.
用于句尾
Editors of newspapersallowmorevulgarisms to go toprinttoday than they used to.