16、The balls are solid, makes them very heavy. - n! h9 y1 j- M6 j: V A.it B.what C.which D.that % {- r$ G3 f% ]2 q* P2 m 17、Is this calculator you borrowed from Jane? ' V1 M: Z4 V+ \+ n A.which B.one C.the one D.what d( U3 D( o) \4 S$ A& D' H
18、The scientist and his achievements you told me about are admired by us. 1 L7 f/ d: _5 a7 J# q0 J$ l: p q! g A.who B.that C.which D. / 2 C2 R5 _4 Z1 I6 l' x 19、I suppose the theory he stuck correct. ( w, m/ O7 {" G/ B6 ^" o+ O A.to prove B.to proving C.to proved D.prove - R; N5 c: z: n5 Z9 c0 s 20、He is working hard, will make him pass the final exam. 8 n4 v7 s4 w+ n: a" B" } @ A.who B.that C.which D.it6 n3 _8 x* M# ^; @0 A* ?
16、C 17、C 18、B( Y4 d5 B0 P+ s
19、C 20、C