----He was nearly drowned once ．

   ---- When was ______?

   -----_____ was in 2000 _____he was in middle school ．

 A．that; It ; when                              B．this ;This; that

 C．that; This; when                            D．that; It ; that

----He was nearly drowned once ．

---- When was ______?

-----_____ was in 2000 _____he was in middle school ．

----He was nearly drowned once ．
---- When was ______?
-----_____ was in 2000 _____he was in middle school ．

1. A.
   that; It ; when
2. B.
   this ;This; that
3. C.
   that; This; when
4. D.
   that; It ; that

----He was nearly drowned once ．

      ---- When was ______?

      -----_____ was in 2000 _____he was in middle school ．

      A．that; It ; when                   B．this ;This; that

      C．that; This; when                   D．that; It ; that

----He was nearly drowned once ．

   ---- When was ______?

   -----_____ was in 2000 _____he was in middle school ．

 A．that; It ; when                   B．this ;This; that

 C．that; This; when                 D．that; It ; that

----He was nearly drowned once．

---- When was ______?

-----_____ was in 2000 _____he was in middle school．

A．that; It ; when                                  B．this ;This; that

C．that; This; when                                D．that; It ; that

----He was nearly drowned once ．

---- When was ______?

-----_____ was in 2000 _____he was in middle school ．

　 A．that; It ; when　　　　　　 　　　　　 B．this ;This; that

　 C．that; This; when　　　　　 　　　　 D．that; It ; that

----He was nearly drowned once ．
---- When was ______?
-----_____ was in 2000 _____he was in middle school ．