— What’s the matter?—I am having trouble __________ who has taken my book.
His father teaches English at ______ middle school but I don’t know which one.
–- Can you discuss the science report with me this afternoon? -- . I will be free after 2:30 in the afternoon.
We don’t look the same, we’re twins.
I like have dinner at home. My mother often cooks ______for me.
My parents are not at home, so I have to my little sister.