根据以下各句所给的首字母提示，用单词的正确形式填空，并将其完整形式写在答题卷上。

小题1:Officials attached great i________ to this incident, so they researched into the matter at once.

小题2:Because time is l_______, we should make full use of it.

小题3:Don’t worry. You’ll get f________ with everything around here as time goes by.

小题4:He spent only a few minutes giving us a b_______ introduction to the museum.

小题5:It is o_______ that people have taken measures to prevent the disease from spreading with no chickens and ducks in the market.

小题6:Students mustn’t leave the schoolyard without their teachers’ p_________.

小题7:The little boy lifted the big stone with all his s_______.

小题8:The student has b________ a lot from taking exercise such as keeping fit, being optimistic and so on.

小题9:The girl a__________ the teacher’s help very much, so she sent a card to him to express her thanks.

小题10:I will have to work e________ hours since my task isn’t completed yet.