--- She looks very thrilled. She have passed the exam. --- I guess so. It is a very important exam after all.
There is some doubt whether he will______ at the meeting.
The reason______ he was late for work was______ he didn’t get up early.
Before building a house, you will have to ______ the government’s permission.
The government has to close those small factories to prevent the water of the river___.
Along with the letter was his promise _____ he would visit me this coming May Day.