The days when he was_________ his best is already a thing of the past.
| A．in | B．on | C．at | D．with |
He is a member of our .
| A．brain power | B．brains power | C．brain powers | D．brains powers |
----Sorry, Michelle is a little shy.
----Never mind, I be that way when I was her age.
| A．would, at | B．used to, × | C．would, × | D．used to, at |
a fire, hotel guests are asked to remain calm.
| A．As a result of | B．In the event of | C．By reason of | D．In the time of |
As is known to us, theory is based on practice and servers practice.
A. by chance B. in turn C. in return C. by turn
As soon as their party come into they changed the law.
| A．force | B．power | C．strength | D．energy |