.It’s best to plant trees(植树)in _____.
The cat climbs into the sitting-room _______the open window.
— ________does it ________to drive to the train station! —Half an hour.
—Why _________Beijing Duck? —Good idea. Let’s go.
—Your uncle will come to see you this weekend, dear son. —_____________.
—Would you like to go to the Great Wall? —I’d love to. I can’t wait__________ it.