He could speak English fluently because he __________ it for four years when he was a college student.
________ you said at the meeting describes a bright future for the company.
It remains to be seen ________ the newly formed committee’s policy can be put into practice.
_________ breaks the rules should be punished and fined at least 200 yuan.
I’m sure that it is obvious ________ Gina was lying, for I saw her in the street yesterday.
________ she couldn’t understand was ________ fewer and fewer students showed interest in her lessons.