The man is very ill and he has _______.
–Why did Miss. Wang look so worried when we saw her. --Because she wondered ______________________.
The time he has devoted in the past years _____________ the disabled is now thought to be ________ great value __________ him.
Many boys and girls are forced ____________ what they have ____________.
–– When will you go back to your hometown? ––__________.
His brother insisted on _______to have an English lesson _______ he didn’t feel well that day.