I have to tell if the verb is transitive or intransitive

Question

1. Most people think of Bamboo as a tree or bush?
2. Bamboo belong to the grass family.
3. More than 500 kinds of bamboo grow in the tropic?
4.These plants thrive in warm climate.
5. People use bamboo in many ways.
6. Engineers strengthen concrete with it.
7. In japan the hollow stems serve as water pipes.

I think the answers are
1.Trans
2. Int
3. Int
4. Trans
5. Trans
6. Trans
7. Int

Can you tell me if I am correct

Answer 1

Five of your answers are correct.

Answer 2

Which ones are wrong?

Answer 3

Can you tell me which answers are wrong?

Answer 4

1. Look up each verb in a good dictionary or dictionary website, such as here, where I looked up "belong" -- http://www.answers.com/belong

The dictionary entry will tell you if the verb is transitive (trans. or just tr.) or intransitive (intrans. or just intr.)

Let us know what you decide.

Answer 5

I think #4 and #7 are wrong. Is that correct?

Answer 6

#7 The verb "serve" can be either transitive or intransitive, depending on the particular sentence. In this case, it's used as an intransitive verb -- there is no direct object for it.

You're right about #4.

Answer 7

4 is wrong. 7 is correct.

The verb, "serve" has no direct object, so it is intransitive.

Answer 8

"their size might surprise you." is this transitive or intransitive