—Excuse me, may I take a seat here? —______. The man on the seat has left.
The students came to ask the teacher___________.
-Who translated the article? -It ______by Mr Smith.
She used to ______chess after school, but now she’s used to _______Weiqi.
I didn’t meet him at the party. By the time I ____to the party, he _____for half an hour.
-______did the meeting last yesterday? -About three hours.