He__________ he would be able to leave tomorrow, but it's beginning to took difficult.
. ______ we are sure about is the need to prevent children from being spoiled.
. I was wondering what it is _____ has made her so popular with her workmates.
She ______his number in the phone book to check that she had got it right.
Food safety is _____ important, so the government spares no efforts to prevent food pollution.
Have a good look round the room to you have packed everything for holiday.