The trip will take about five months;it will be a long time ________ we meet them again.
Scientists are convinced _____the positive effect of laughter _____physical and mental health.
Could you give me a hand? It seems that my strength has _________.
Unfortunately, ____ stone hit him on ______ head and he got injured.
—I’m sorry I broke your teapot. —.
I thought our friendship was finishedJenny apologized first and I forgave her right then.