The number of people who ____English as a foreign language __more than 750 million.
My son has changed so much that I could hardly __________ his voice on the phone.
He must be leaving our village because he is __________.
− Can you _________ all the money that I should pay? − Very sorry. Please wait a minute, madam.
It is you rather than Lucy who ____ for the accident.
With so many problems ____, the new government is in rather a difficult situation.