The government has to close those small factories to prevent the water of the river___.
Usually children are allowed to ___________ when they are six years old.
.Our team was ahead during the first half, but we _____ in the last ten minutes.
It is the first time that I ___ this kind of moon cake.
While listening carefully, the students___ what their teacher said.
Sam always pronounces my name wrong. Do you think he does it____ ?