We found ______ very difficult for the children to understand what the chairman said at the meeting.

A．that        B．its         C．this          D．it

We found ______ very difficult for the children to understand what the chairman said at the meeting.

1. A.
   that
2. B.
   its
3. C.
   this
4. D.
   it

We found ______ very difficult for the children to understand what the chairman said at the meeting.

A．that        B．its         C．this          D．it

We found ______ very difficult for the children to understand what the chairman said at the meeting.