【简答题】Once________(立刻), we all thought that we grew up.
【单选题】— Did you call on any of your old friends when you returned to your hometown ? —______ of them . They were all very busy .
【单选题】植物根际每克土壤的微生物数量与每克根外土壤中微生物数量之比,称之为:
【单选题】---When _______ your computer ___________? ---Yesterday afternoon.
【单选题】6-29. When did your father __________ the Army?
【单选题】—When ____your sister the computer? —Last month.
【单选题】When did your father ___________ your mother?
【单选题】植物根际每克土壤的微生物数量与每克根外土壤中微生物数量之比,称之为:
【简答题】_______________ (幸好) there was a hospital nearby and we ______________________________ (立刻把他送到那里). (fortunate, take,once)