He could speak English fluently because he __________ it for four years when he was a college student.
He didn’t _____ to the news.
is reported in the newspapers, talks between the two countries are making progress.
To keep the town clean, the truck ____ garbage is prevented ____ entering the town.
Is this the reason ____ at the meeting for his carelessness in his work ? A. he explainedB. what he explained C how he explainedD. why he explained
I didn’t realize putting on a play _________ so much work.