More historical buildings in the old town will fall down ________we try our best to protect them.
—______ will you come back from Shanghai?—In one month.
—I went to Daming Lake yesterday. There were ______ people. —Yes. Everyone wants to go out on such a good day.
More and more people find ______ necessary to protect our earth.
My father has ______ for two weeks. I miss him so much.
Thelisteningtestusually______20%oftheEnglishtest.