A number of birdwatchers ______in Zhalong Nature Reserve. The number of them____500.

Lingling’s aunt will meet her________the airport________Saturday morning.[ ]

I don’t hear the song clearly. Please turn_____the radio.[ ]

Did you watch the snooker game yesterday? — Yes, I did. Xiao Guodong is really a dark horse. Nobody _______ him to go so far.

It __________ hard outside, let’s not go shopping.