When he looked up, he suddenly found himself by a group of teenagers, looked at him anxiously.
A.to be surrounded; which B.surrounded; who
C.be surrounded; who D.having been surrounded; which
When he looked up, he suddenly found himself by a group of teenagers, looked at him anxiously.
A.to be surrounded; which B.surrounded; who
C.be surrounded; who D.having been surrounded; which
B