Lin Lin often practices English ______ chatting with her American friend. [ ]

Li Na is _____________ first Asian who won championship in French Tennis Open.—We’re proud of her！

_______ in bed will do harm_______ your eyes.

We’ll have a hiking trip, but when shall we meet? —Let’s make it ______ half past eight ______ the morning of June 21. [ ]

“Well done, John! Not a single mistake ________ in your exam paper this time!” said the teacher．