I don't think _________ possible to master a foreign language without much memory work.
| A．this | B．that | C．its | D．it |
I think this software is of little use to your work. It is really a ________ of money.
| A．lack | B．load |
C．question | D．waste |
It’s said that this kind of plant only gives off this strange perfume on ________ conditions which the scientists are trying to figure out now.
| A．outstanding | B．certain |
C．obvious | D．ordinary |
As we know, success often comes after ______ failure; so don’t be so upset about _______ failure of this matter.
| A．a; a | B．不填; the |
C．a; the | D．不填; a |
It was in the street _______ I met one of my friends yesterday.
| A．how | B．that |
| C．which | D．when |
The beauty of the city is _______ my description.
| A．above | B．beyond |
| C．off | D．by |