16.In order to increase our output, we need to import more production _______.
4 i, S: Z# e% \6 N: h- P! h' C3 z- d6 s+ P! D0 }
A. facilities B.hens C.votes D.artists
7 ~. a/ X& }, n% P! M) c6 U
# T+ T# ]) ?: f9 f4 s3 l$ F17.When a spacecraft travels, one of the major problems is reentry into the Earth’s _______./ X7 _# U- q" r. v( S6 ?
' c! Z7 @$ A9 q4 E# t: X A. surface B.atmosphere C.attitude D.bent! V: Q2 T8 ^; f5 A# E
6 \6 ]6 r8 N2 w6 k1 X" @7 f18.This river forms a natural _______ between China and Korea.
! F s9 o! g* I" ~- Q% y. A0 Y7 H4 s1 B" u7 w- g/ n
A. boundary B.string C.spot D.zone
& U* k/ T2 E$ E8 Z G! _
/ t+ G/ [# L$ H/ X19.She is already 16years old. But she _______as if she were still a little girl.
9 G `! \" n3 w. D) y
/ P4 J# ]0 o/ z: Q- i& g8 ]; N A. believes B.absorbs C.accrses D.behaves
- g' Y1 Y7 E/ L) Y+ z) N
" O q% X- R$ G" E0 E- K20.We are _______ at the rapid progress Mark has made in this semester. R5 P4 I. q/ S( [0 G# x
! P( d: Z: s8 C! N
A. distinguished B.annoyed C.astonished D.scored
3 J+ r8 {" d8 s+ q' F, V) \
& }' y# C3 |( H6 Q! ?! I16.A 17.B 18.A 19.D 20.C |