（）1、My mother let me _at home to study yesterday.
A stayed B staying C stay D stays
( ) 2、You need not go shopping . We have _ vegetables in the icebox.
A much B a little C plenty of D lot of
( )3、I am invited his friends _ dinner.
A have B had C to have D having
(_) 4、They say that Mr.Green has gone to America . _ that be true？ A