Over 200,000 hotel reservations were made in Hong Kong through Taobao last year, ________ it the most popular travel destination among Chinese netizens.

—Can you come up with another good idea?—This is the best approach I can imagine __________ the work ahead of schedule.

 Unless ________ to answer questions, the pupils won't talk in Mrs Smith's class.

With all my attention _____ my homework, I didn't even notice my father standing by me.

As the film star began to appear，the children watched, ________.