1 Laser beams can be used to bore metals and other hard materials.
; F- i( @% r' L# {! Q) w% i# p A trim B melt C drill D slice
( d' y" f8 \( @$ R0 |7 s9 h5 T2 The cost of elections in the United States is borne by both the government and the private sector.7 {2 E2 v$ ^/ }9 D+ }7 Y+ }! u
A known B fought C exposed D assumed& z2 o4 N% ~5 ?7 M1 v& D8 N
3 Acknowledged as the main cause of hay fever the pollen of ragweed is very bothersome.7 T* c6 {# c0 @+ g# q) d- k9 J( p
A intriguing B annoying C potent D significant
u' u5 \8 t3 G1 @1 X! Y4 They got in quite a brawl.' R: A3 }# ]$ ^* T1 b6 }/ @
A snit B fight C bally D littering7 c0 o9 P; `, s
5 By providing legal representation,the American Civil Liberties Union works to defend citizens
+ S& o, ~- ?$ z2 Z4 ` against breaches of their civil rights.
1 A, V. ^' A& A$ \- G A branches B exercises C perusals D violations# J. i/ R% K2 j1 h
1.C2.D3.B4.B5.D |