Jack’s parents can’t go to the parents’ meeting because they ________ to Beijing on business.
—What shall we do this Saturday? — it rains, we’ll have a picnic in Century Park.
It's a pity that I didn't think of ringing you .
To remember things accurately, we don't allow other thoughts our mind.
If you travel around the world, you will be surprised at ________.
-__________ has Line 22 (From Jinshanwei Station to Shanghai South Railway Station) been open to traffic?