用所给单词的适当形式填空。

1. Jenny is going _____________ (buy) something outside.

2. I _____________ (eat) four eggs this morning.

3. Li Ming never _____________ (take) a bus to school.

4. Look! They are _____________ (put up) the Christmas tree.

施工升降机（）安装超载保护装置，超载保护装置在载荷达到额定载荷总量的（）前应能终止吊笼启动。

A.应、100%

B.应、110%

C.可、100%

D.可、110%