A. to have informed B. informing C. to inform D. having informed
A. try go B. trying to go C. try to go D. try going
A. not be B. not to be C. to be not D. be not
A. to tell you B. telling you C. to have been told D. to telling you
A. teaching B. to teaching C. to teach D. for teaching
A. and finished B. to finish C. and finishing D. to finished
A. Opening the door B. your opening the door C. my opening the door D. I opening
A. to solve B. solving C. being solved D. to be solving
A. move B. moving C. to move D. moved
A. to learn B. learning C. learn D. learned