- The coolant alternately from changes a liquid to a gas.
a. gradually
b. by turns
c. slowly
d. rapidly - They are waiting for the wind to let up.
a. stop blowing
b. start blowing
c. changed direction
d. blow harder - That changes some substances to a vapor.
a. gaseous form
b. liquid form
c. a watery substance
d. slick form - A compressor is a__________.
a. pump
b. piston
c. machine
d. coll - When a liquid evaporates, it picks up heat.
a. gains
b. loses
c. changes
d. controls - Let’s hang around and see what happens..
a. leave
b. stay
c. hurry
d. go - A gas is _____ substance.
a. an oderless
b. a liquid
c. an air-like
d. a watery - A light rising from a fire is a __.
a. visible
b. wood
c. match
d. flame - The tongue is a sense organ for __.
a. tasting
b. smelling
c. hearing
d. faling - Is it possible __ in the dark?
a. to seeing
b. seeing
c. to see
d. seeing to - Rubber is important _ it has so many uses.
a. although
b. since
c. because
d. but - Keep in mind that you’ll be here at 6.
a. remember
b.
c.
d. - He left __ saying a word.
a. when
b. without
c. with
d. memorize - I go to class _______ going to the lab.
a. when
b. while
c. with in
d. before - Many years ago, a sailor standing in the board of a ship would shout,
a. used to
b. might
c. was going to
d. be used to - A fire wouldn’t burn _____ oxygen ?
a. with
b. without
c. by
d. in place of - His constant companion was on ox, Babe
a. owner
b. property
c. friend
d. relative - _______ mathematics or physics easy to understand ?
a. Is
b. Does
c. Are
d. Do - My shoes are made _______ pure leather.
a. for
b. with
c. from
d. of - That material can not be bent. It is ______ .
a. rigid
b. solid
c. flexible
d. flammable
ANSWERS:
961-B 962-A 963-A 964-A 965-A 966-B 967-C 968-D 969-A 970-C
971-C 972-B 973-B 974-D 975-A 976-B 977-C 978-A 979-D 980-A