Tom, hurry up! It's time to have ________ breakfast. The school bus is coming soon!
A.a B.an C.the D./
Many countries in the world are looking forward to ________(trade) with China.
Every winter, many ________(visit) come to Changchun to enjoy the world of snow and ice.
I felt ________(luck) to live in China when I saw many children couldn't go to school in Africa.
Our actions can make a ________(different) to environmental protection in our hometown.
In China, Tomb Sweeping Day is in April, the ________(four) month of a year.