______ impressed the audience most was ______ the magician Liu Qian played in this year's Spring Gala.
_________good, the food was soon sold out.
—What were you doing when she dropped in? —I for a while and_________ some reading.
If you want to see a doctor, fix the date with him ahead of time. This is a common ___________ in the USA. A. habitB. lawC. ruleD. custom
He___________ when the bus came to a sudden stop.
—What would you wish to do if you were a college student again? —That's very hard to say, but I wish I___________ when I was a college student.