1 is gramatically correct, though it would usually be "Read the sentences in a loud voice". 3 is also correct just the way it is.
2. "Read the whole sentence loudly."
1. Read all the sentences in a loud voice.
2. Read the whole sentences loudly.
3. Read the whole sentence aloud.
[Are they all correct? Do we have to use 'sentence' or 'sentences' in #2 and #3?]
2 answers
Nice job, Matt.