____ you want to remember its usage, you’d better make a sentence with the new word.
| A．Unless | B．While | C．Now that | D．Even if |
Such plants, particularly___ to collectors, motivated them to explore on a large scale.
| A．appealed | B．attracted |
| C．appealing | D．attaching |
Only when he returned home ______ what had happened.
| A．did he realize | B．he realized |
| C．he did realize | D．has he realized |
34. He was fortunate ____ he did not get injured in the car accident.
| A．but that | B．except that |
| C．because of that | D．in that |
33. He hasn’t decided _____ he will go abroad next year.
| A．whether | B．when |
| C．where | D．why |
The old man turned his business over to his younger son, ________made his elder son discouraged.
| A．who | B．what |
| C．that | D．which |