A. pemits B. to permit C. permitting D. permitted
A. being absent B. are absent C. to be absent D. absent
A. To give B. Giving C. To be given D. Given
A. to be discussed B. being discussed C. discussed D. to discuss
A. built B. to be built C. be building D. having been built
A. to be B. be C. being D. been
A. to steal B. steal C. stealing D. stole
A. being understood B. understanding C. understood D. understand
A. served B. serve C. serve for D. to serve
A. began B. being begun C. begins D. having begun