题目
题型:同步题难度:来源:
[ ]
B. seating
C. being seated
D. having seated
答案
核心考点
试题【Once_____, everyone taking the examination will be given test papers. [ ]A. 】;主要考察你对动词的基本形式等知识点的理解。[详细]
举一反三
[ ]
B. calling; is compared to
C. who called ; compares to
D. called; is compared to
[ ]
B. catching
C. to catch
D. caught
[ ]
B. improving
C. to improve
D. improve
从方框里选择正确的短语,并用其正确的形式填空。