I can sing the song, but he ____.
The poor _______ man lived ______in a small house, and he often feels ______.
-- They look so tired.--Yeah. They _____________ day and night. So they are all in poor health.
-- What is the function of the mouse?-- It________ the cursor(光标) on the screen.
-- I’m sorry we ________ all the educational CD-ROM. Can you come next week?-- Please call me as soon as the latest one _________.
He is a teacher with a lot of ______. He often tells us many of his interesting _____ in Africa.