历年专四语法真题总结附答案(共14页).doc

精选优质文档-倾情为你奉上专四语法真题集I.独立主格结构1. Agriculture is the countrys chief source of wealth, wheat _ by far the biggest cereal crop.a. is b. been c. be d. being TEM-4 20032. Time _, the celebration will be held as scheduled.a. permit b. permitting c. permitted d. permits TEM-4 20033. There _ nothing more for discussion, the meeting came to an end half an hour earlier.a. to be b. to have been c. being d. be 2