Edward, you play so well, but I you played the piano.
| A．don’t know | B．hadn’t know | C．didn’t know | D．haven’t known |
We should look up to _________ lend a hand to the people in trouble.
| A．whoever | B．those who | C．whomever | D．no matter who |
A new _______to teaching English is being used here, and it has proven to be very helpful to the students.
| A．way | B．system | C．approach | D．method |
When _______how a statue from distant Greece could have appeared in China, researchers explained that no doubt this was a result of Alexander the Great’s influence.
| A．to be asked | B．asking | C．asked | D．being asked |
The teacher and writer as well as some students something when we entered the room.
| A．discussed | B．were discussing | C．have discussed | D．was discussing |
While watching television, .
| A．the doorbell rang | B．the doorbell rings |
| C．we heard the doorbell ring | D．we heard the doorbell rings |