This substance ________ a gas when heated .
[ ]
A．gives in
B．gives out
C．give away
D．gives up
Everything was covered with snow and they lost their________to the village.
A. road B. way C. foot D. drive
We must try some way to ________ the dust .
________ took him two years to write that book .
The boy ______ the tree and hurt his leg.
A. fell off B. felt off C. fallen off D. fell down
In 1976 a big earthquake ______ Tangshan.
A. happened B. beat C. hit D. shake
The woman ______ her handbag on the ground.
A. landed B. fell C. dropped D. left
He has made more progress this term than he ______ last term.
A. has B. had C. did D. made
My sister gave us a phone call when she ______ New York.
A. got B. arrived C. reached D. arrived at
Entering the gate of Beihai Park, we found the lake ______ little boats.
A. lined with B. crowded with C. marked with D. dotted with