Bamboo, which is a common plant in the south, is used ______ in buildings, food, furniture and so on. It is used to make clothes as well.
It is _______ he often fails in exams ______ makes his parents worried about him.
Who are making so much noise in the garden? —_______ the children.
It was lack of money, not of effort, _____ defeated their plan.
It’s more than half a century _____ my grandfather joined the Party and became a servant to the people.
“Was it under the tree _____ you were away talking to a friend?” “Sure. But when I got back there, the bike was gone.