Another food crop raised by Indians ______ was strange to the European was called Indian corn.
Two building workers got seriously wounded when the stadium _______.
Fur coats are good means to ______ people from frost bites in cold winter.
Her pale face suggests that she ______ in poor health and her friends strongly suggest that she _____ a doctor.
------You speak very good French! --------Thanks .I _____ French in Sichuan University for four years.
------How about ________Christmas evening party? -------I should say it was______ success.