Robertisinterestedin_________astron

发布时间：2020-07-10 14:44:59

Robert is interested in _________ astronomy and he wishes he could make a trip into _________ space one day．













A.the; the












B.an; the











C.an；不填











D.不填；不填

网友回答

D
以上问题属网友观点，不代表本站立场，仅供参考！