Have you ever ________ to Qingdao? There is ______ aquarium at the seaside.
--- What about taking a walk after dinner? ---______________.
--- Zhou Yang won the 1500-meter Olympic title at the Sochi Winter Games on February 15. ---_______________________
His pronunciation is better, for he kept ______ a short passage after the tape every morning.
Run for more than half an hour every day, ________ you can lose your weight easily.
Mr. Zhang ________ as an engineer since he came to the computer company in 2008.