See the flags on top of the building? That was _______ we did this morning.
I’m not very good at playing chess. He often _______ me.
Mrs. Black doesn’t believe her son is able to design a digital camera, ________?
--How is_______ going with you? -- So so.
One way to understand thousands of new words is to gain _____ good knowledge of basic word formation.
--Do you know anyone in Paris? --No, I’ll make friends once______ .