If I remember correctly, you were supposed _____ the keys on your way here. [

题型：0127 模拟题难度：来源：

If I remember correctly, you were supposed _____ the keys on your way here. [ ]
A. collecting
B. collect
C. to collect
D. collected

答案

举一反三

_____ more effectively with others, more and more people equip themselves with a higher education. [ ]
A. To compete
B. Being competed
C. Competing
D. Competed

题型：0127 模拟题难度：| 查看答案

When my hand touched the letter in my pocket,I realized that I had forgotten _____ it.A. to post
B. to have posted
C. posting
D. having posted

题型：同步题难度：| 查看答案

The goal of a “competition” may simply be ______ fun and enjoy the excitement of trying something new. [ ]
A. to have
B. having
C. having had
D. have

题型：同步题难度：| 查看答案

When my hand touched the letter in my pocket, I realized that I had forgotten ______ it.
A. to post
B. to have posted
C. posting
D. having posted

题型：同步题难度：| 查看答案

When my hand touched the letter in my pocket, I realized that I had forgotten ______ it.

[ ]

A. to post
B. to have posted
C. posting
D. having posted

题型：同步题难度：| 查看答案