The palace caught fires three times in the last century,and little of the original building now.
| A．remains | B．is remained | C．is remaining | D．has been remained |
Use your head, _______you’ll work out the problem.
| A．so | B．or | C．for | D．and |
_______ is known to all, Lu Xun was famous as a great thinker.
| A．Which | B．As | C．It | D．What |
I would appreciateback this afternoon.
| A．you to call | B．you call | C．your calling | D．you’re calling |
If something ________, it becomes less and less and eventually disappears completely.
| A．dies off | B．breaks off | C．dies out | D．breaks out |
It’s the first time ______ he has helped us.
| A．that | B．before | C．when | D．who |