This is my father. ______ is a farmer in the north of China.

Excuse me, Mum. When can we have dinner? —Not until itin half an hour.

Where are you going __________ your next vacation?-We decided __________ Europe.[ ]

Can you tell me _____ the birdwatchers in Zhalong Nature Reserve? I only know that _____ of them are from our school.

What’s this in the photo?—It’sUFO.I took the photo.