He has never done this type of work before;I’m not sure how he’ll______the other employees.
— I’ve told Nancy many times about the meeting, but she still forgot it!— I understand. Actually, anyone ______ be very forgetful at times.
The small window in the wall could ______ some light into the room.
As we know, _______ medical examination will help us find out health problems as early as possible.
Some exercises appear to be ______ ones you have done, but on ______ second thoughts, you’ll find that they’re different.
. —Thank you for having bought me a ticket for the World Expo in Shanghai!— ________.