Certainly I posted your letter — I remember ______ it. 
#98425
A
posting
B
to post
C
to be posting
D
have posted
推荐题目
 The boy ______ in the exam is a student in Class Nine.
#90232
A
catching cheating
B
caught cheated
C
catching cheated
D
caught cheating
Can you imagine the actress ____ so much in public?
#97862
A
admiring
B
admired
C
to be admiring
D
being admired
Your composition is good but your handwriting still requires   .
#97781
A
improving
B
improved
C
being improved
D
to improve