No matter how frequently ________, the works of Beethoven still attract people all over the world.
| A．performed | B．performing | C．to be performed | D．being performed |
It never occurred to me _____ you could succeed in persuading him to change his mind.
| A．which | B．what | C．that | D．if |
To improve the quality of our products, we asked for suggestions had used the products.
| A．whoever | B．who | C．whichever | D．which |
________ is of no concern to us.
| A．It rain or not | B．If or not it rains |
| C．Whether it rains or not | D．Will it rain or not |
____is no doubt ____ Bob can win the first price in the match.
| A．There; that | B．It; that | C．There; whether | D．It; whether |
Somehow this seems to me to be _______. How could a team that had fought for Canada before suddenly become citizens of the USA?
| A．out of question | B．out of place | C．out of shape | D．out of control |