I don't know ________ up so early last Sunday.
-- _____________did your uncle leave his hometown ? --He ____________ for nearly twenty years.
A: Where is Simon? B: He ________ the USA. A: By the way, have you ever ________ abroad before? B: No, never. A. is in, been to B. has been to, gone C. went to, gone to D. has gone to, been
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.