Complete transitive verb V.S Incomplete transitive verb

[Andy Lin]

Hi, there! I'm struck with these two things difference.

There are three questions.

1. The baby slept __
(A) for sound sleep (B) to be sound (C) a sound sleep (D) in a sound sleep

2. The room __ fifteen feet across
(A) measures (B) has measured (C) measuring (D) is measured

3. The boys are __
(A) on upstairs (B) in upstairs (C) upstair (D) upstairs

My thoughts:
1. Slept in this sentence is the incomplete intransitive verbs and "for sound sleep" is the complement.
But the answer is C, slept is actually the complete transitive verbs and "a sound sleep" is the object.

2. D is my answer but it's wrong. The answer is A. Why D doesn't work in this sentence?

3. D is the answer and I choose C.

incidentally these two instance.

I want to see him now.
I hung my coat on the rack.

The want and hung in these sentences are complete transitive verbs. But I think hung in the second sentence is the incomplete transitive verb. Is there any trick to distinguish it difference?

 

[Raymott]

1. The baby slept soundly. That's natural. None of the answers are natural, but your reasoning is sound.
2. A. "measures". It's simple present tense. We say that something measures x by y if that is the length and breadth. Yes, someone measures the room, but we can say it like this. Just like "The box weighs 10 kg." We weigh the box, but the box weighs <it's weight>.

3. D. Not much to explain here. 'Upstairs' is the only answer that makes sense.

"I hung my coat on the rack." "My coat" is the direct object of 'hung'.