<span>Two-headed snakes have
been found in the United States. Gordon Burghardt, zoologist at the University of Tennessee, has
studied several two- h e a d ed snakes and he says that sometimes the heads become so aggressive and
even try to eat each other! </span><span>A lack of understanding between two heads can lead to even greater
difficulties: a predator would quickly swallow the hesitant snake. Two heads are NOT always better
than one'. Even in captivity, there are problems. Food should be given
to one head first and a moment later to the other one. If both mouths
are busy chewing, they won't attack each other. Thelma and Louise, a
two-headed snake at the San Diego Zoo had 15 normal babies. Indy the
snake has 26 brothers and sisters but because she's one of a kind,
she could one day be sold for about $500,000 to a zoo or a collector. The two- h e a d e d monsters of myth may
have a basis in reality.</span>
1.may
2.should
3.must not
4.may
5.should
6.may
7.must
8.may
9.must
10.must
1 I didn't like school when I was young (use)
I didn’t use to like school when I was young.
2 He moved to Lisbon two years ago. (living)
He has been living in Lisbon for two years.
3 This is my first time on a steamboat! (never)
I have never been on a steamboat before.
4 Having such amazing friends makes me feel lucky (have)
l feel lucky to have such amazing friends.
5 The last time I saw Sarah was Friday. (have)
I haven’t seen Sarah since Friday.
Ответ:I like the film "Rio 2". Because this film wonderful.Editors work very good!And i share this film wirh my friends.I love this film.
Объяснение: