I saw him _______ out of the room.

1. A.
   go
2. B.
   had gone
3. C.
   has gone
4. D.
   goes

I saw him _______ out of the room.

A. go      B. had gone     C. has gone      D. goes

I saw him ______ at desk, reading.

    A. sat    B. seated     C. seating    D. seat

I saw him tearing　　  the cover of the parcel.

A.off　　　　B.at　　　　C.down　　　　D.apart

I saw him leave the office an hour ago . He ____ at this time .

A . mustn''t be working  B . can''t be working

C . can''t work  D . may not being working