When she got home, the first thing _______ she did was to clean the house.
In our class _____ of the students _____ girls.
He’s read this book before, _____?
Compared with last year, our pay _____ about ¥500 every month.
—Where are Maria and Kangkang? —They _____ England.
—David has made great progress recently. —_____, and _____.