1. Nathaniel (often) complained of how (few) material his life (provided)
for his (fiction) .
2. Government money appropriated (for art) in the 1930's made
possible (hundreds of) murals and statues still (admiration) in small
towns (alll over ) the United states .
3. Ponds (are noted) for their rich and varied (types of) plant and animal
life , all (maintain) in a delicate ecological (balance).
4. Asteroids may be (fragments) of a planet (shattered) (long ago) or
( from material) the nuclei of old comets.
5.Today , modern textile mills can manufature as much (fabrics) in a (few)
seconds as it once took (workers) weeks (to produce) by hand.
6In Florida, (when) the temperature (drops) below freezing , Cirus growers
keep yong (tree) warm by constantly showering them (with water).
7.Massachusetts was (first explored) in the late sixteenth and (early)
seventeenth (centuries) and the first permanent (settlement) at
Plymputh in 1620
8.(The) main (advertising) media include (direct mail), radio, television,
magazines, and (newspaper).
9。Stars derive (their) energy (from) thermonuclear reactions that
(take place ) in (their) heat interiors.
10. Nylon , a synthetic (done) from a (combination) of water , air , and
by-product of (coal), was first (introduced) in 1938.
11. (Birds'eggs) (vary) greatly (of) size , (shape), and color.
12。In 1991, Antonia Novello, the United States Surgeon General,
(launched) (several) programs to (address) particular (problem)
that young people have.
13.(The hardness) (of minera)l often (gives) a clue (to) its identity.
14.Average (world temperatures) have risen (on) half (a degree) celsius
(since) the midnineteenth century.
15.Physical fitness (activities) can lead to an alarming variety of (injuries) if
participants push (themselves) (greatly) hard.
16.For centuries, (the aromatic) spices of the Far East (has been) in
( demand by) the people of the East and West.