–Do you know where David is I couldn’t find himanywhereWell He _____ have gone far — his glasses are stillhere

I have decided ________her for hermistake____ everyone makes mistakes in life.

The question is not easy, so________ students can answer it.

You can use English or Chinese ________ you travel inSingapore.

While ____ to foreigners, you must try your best to make yourself ____. [ ]