8)    A was from   B formed           C was formed   D was forming

9)    A between    B among           C beneath      D both

10)   A from       B go               C back       D come

11)   A was discovered B was invented     C discovered   D invented

12)   A in         B on              C for          D from

13)   A knew      B recognized        C told        D realized

14)   A few        B little            C a few       D a little

15)   A from       B to              C into         D on

16)   A because     B as              C for         D since

17)   A  instead     B take place of      C instead of    D replace

18)   A on         B onto            C into         D in

19)   A into        B for             C by          D from

20)   A smells      B touches         C sees         D feels

答案:

1--5ADBCA  
6--10 DCBAC  
11--15 BADCA  
16--20DCDCB