精选优质文档-倾情为你奉上分词短语作状语练习( )1. _ more attention, the tree could have grown better. A. Given B. To give C. Giving D. Having given. ( )2. The computer center, _ last year, is very popular among the students in this school.A. open B. opening C. having opened D. opened ( )3. The first textbooks _ for teaching English as a foreign language came out in the 16th century. A. having written B. to be written C. being written D. written ( )4. _ is thought, he almos