Rewrite the following sentences using the structure "the time has come for sth. (or for sb. / sth. to do sth.)". Make changes where necessary. Model: It was now time to convert our relationship from academic to romantic. ➝ The time had come for the conversion of our relationship from academic to romantic. 3. Now it's high time to consider the policy of conserving these material resources on which the permanent prosperity of our country must depend.