动词填空：用括号内所给动词的适当形式填空。(共8小题；每小题1分，满分8分)

小题1:When to go climbing _______________ (decide) by us last night.

小题2:The police said that they _______________ (remind) parents not to let their children go out alone on TV the next day.

小题3:While I was watching a football match on TV, my twin brother _______________ (pack) for the next day’s trip to Qingdao.  

小题4:Nothing much should ____________ (do) at the moment. All we can do now is to wait.

小题5:The goal of this lesson is ____________ (learn) how to make telephone calls in English.

小题6:They met happily yesterday. In fact, they ______ (not meet) each other for many years.

小题7:He seemed to have difficulty _______________ (control) his actions.

小题8:Why can’t you just believe me? I _____________(tell) you everything I know!

用盐酸作逆流再生的强酸性阳离子交换树脂，其再生比耗大约是（）。

A.1.05~1.20；

B.1.2~1.5；

C.2~3；

D.1。