When he looked up,he suddenly found himself________by a group of teenagers,________looked athim anxiously.

A：which

B：with which

C：/

D：with that

A：them

B：whom

C：who

D：which

A：It

B：That

C：What

D：As

A：that

B：which

C：who

D：where

A：that is

B：which is

C：what

D：is for which

A：as ; him

B：that ;/

C：as ;/

D：whom ; him

A：is; that

B：are; that

C：is; where

D：are; where

A：which we think are important

B：which we think that is important

C：we think which are important

D：which we think is important

A：It

B：As

C：That

D：What

A：whom

B：which

C：they

D：who