I _______ the charity show on TV when the telephone rang.
By the first day of August, 2007, the PLA has its ______ birthday.
My mother often tells me _____ the teacher carefully in class.
The number of the people present at the concert was _____ than expected. There were many tickets left.
I’d like you to tell me something about Shennongjia.－I’m sorry, but neither Jack nor I there.