If you cannot have a good command of grammar as wellas precise usage of each word you’ve learnt, it is ________ for you to useEnglish flexibly.

When the plane landed, the girl could hardly wait _____ her parents. [ ]

I don’t think it is advisable ________ inyour coming university.

I’m trying to find yesterday’s paper. Have you seenit—I’m afraid I ______ it away. I thought you hadfinished reading it.

You _____ have come to the meeting. There were so many famous people and the argumentation among them was so excellent.