He _________his friend in the crowd at the first sight and called out his name.
His teacher told him that since his parents were working abroad, either his grandparents or one of his uncles ______ allowed to come to the parents’ meeting .
---It is known to all that this factory pours lots of waste water into the Changjiang River every year. ---- _________ near my hometown.
He didn’t attend the meeting last night, _________ he doesn’t know our plan for the picnic.
In 1778, Banks was elected ________president of the Royal Society, ________position he held for 42 years.
---You really appreciate Justin Bieber’s performances, don’t you? --- __________. I just like his soft voice.