—Did the children make the model all by________? —Yes, they did. A. they B. them C. themselves
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, goneC. 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.
-- I’m sorry we ________ all the educational CD-ROM. Can you come next week?-- Please call me as soon as the latest one _________.