Thescientistswerewai的精選

問題詳情：Thescientistswerewaitingtoseetheproblem____.A．solve   B．solved   C．tosolve   D．solving【回答】B【解析】句意：科學家們正等著看問題的解決。A.solve動詞，解決；B.solved過去式或過去分詞；  C.tosolve...