--- Where is your mother?
--- She _______ to Sichuan on business. She has ______ there four times recently.
| A．has gone; gone | B．has been; been |
| C．has gone; been | D．has been; gone |
—Have you written anything on Chinese traditional medicine so far?
— _________, but I have a plan for it.
| A．Ever since | B．Later on | C．Not yet | D．From now on |
—What is theof the sign on the bottle?
—It “Keep away from the children”.
| A．means; meaning | B．meaningful; meaning | C．meaning; means | D．means; mean |
—Look! The line of people is ______.
—Bad luck. I don’t think we can get any tickets.
| A．hopeless | B．helpless | C．endless | D．careless |
—Where is your uncle?
—He _____ to South Africa on business. He has ______ there twice.
| A．has been; gone | B．has gone; been | C．went; gone | D．will go; been |
—There _______ a factory here, but now it has changed into a big supermarket.
— You are so lucky to live here.
| A．used to have | B．is used to be | C．used to be | D．was used to be |