Can you __________ Chinese, Mr. Green?
— Where is my pen ? Have you seen ____?— Oh, sorry. I have taken ____ by mistake.
—Were you at home 7:00 last night?—Yes, I __ a shower at that time.
—Hello, Mike. Long time no see, Where are you?—Oh, not only my parent but also I __ Wuhan for a month.
Don’t discuss the problems with your partner unless you ___ to do so.
—Listen! Our music teacher is playing the music of Two Butterflies.—_________!