After a while Julia got sick ________ lying on the beach, so she went off to explore the town
E) on F) for G) about H) to
He has left his book here on _____, so that you can read it. 汇
The magician picked several persons from the audience and asked them to help him with the performance.
The open university was started in order to help those who _____ having a university education when they were young.
Jack almost fell off the cliff, but managed to _____ until help came.
It isn't so much whether he works hard; the question is whether he works _____.