—Many students don’t know how to _______ stress and become worried.—I think they’d better talk to their teachers or parents.
I really wanted to help those homeless children in the flooded areas, ______ I donated all the pocket money that I had saved for months.
I think ______ is necessary ______ us to do something useful to protect the birds.
--- A serious Tsunami hit Japan on March 11th,2011--- ________ news!
--- Must I finish the project now?--- No, you _ . You _ do it this evening.
I don’t know if it ______ tomorrow. If it ______, we’ll go out for a picnic.