【单选题】某冻土的冻胀率为5%,则该冻土的冻胀性为( )。
【简答题】We didn’t know his telephone number, otherwise we ________ him. A) would have telephoned B) must have telephoned C) would telephone D) had telephoned
【简答题】What he did . We didn’t know (合并为一句) We didn’t know what he _______ ______.
【单选题】We didn’t know his telephone number; otherwise we him.