___ she spoke, I ___ realize she was a Japanese.
| A．When, / | B．Until, didn't | C．Before, don't | D．till, didn't |
He couldn’t ______ the fact that the money was found in his house.
| A．answer for | B．leave for | C．account for | D．care for |
The reason for his success is ______ he worked very hard.
| A．that | B．why | C．whether | D．how |
Don’t try to cheat the taxman(税务人员); you’ll never ______it.
| A．get out of | B．get into | C．get along | D．get away with |
The chairman asked me to ______my speech to 20 minutes.
| A．make | B．give | C．limit | D．explain |
Seeing the enemy, Gary was behaving as though nothing ______.
| A．happened | B．had happened | C．would happen | D．was happening |