Sometimes he found _______very hard to fall asleep at night, so he went to see the doctor．

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

Sometimes he found ________ very hard to fall asleep at night, so he went to see the doctor．

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

Sometimes he found _______very hard to fall asleep at night, so he went to see the doctor．

       A．him   B．this   C．that   D．it

Sometimes he found _______very hard to fall asleep at night, so he went to see the doctor．

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