1) Mark couldn't lift the suitcase, he was too weak.
2) "Why don't we go to the beach?", I said.
3) There was nobody on the beach when we arrived.
on the beach when we arrived.
4) Susan couldn't swim as well as Betty.
5) I last saw dolphins when I was a child.
You will need three words.
SUGGEST must be followed by 'ING'!
You need to use three words here.
Three words are needed in this sentence!