Some students can do very well in English exams, but can understand what a native speaker says.
David may wonder ______ yellow was the colour of rulers in ancient China.
______ Millie ______ Billy is patient with children. I think they can make excellent teachers.
World War II ______ in Europe in 1939 and ended in 1945.
Jane arrived home ______ her children were watching TV last night.
We all found ______ useful ______ English aloud every morning.