________ with the courage and determination of the young cancer patient, many people left messages in his microblog, encouraging him to fight with the disease.
They were abroad during the months when we were carrying out the investigation, or they _____ to our help.
Without you, I _______ the first prize in the speech contest. Thank you, John.
________ it rain tomorrow, we should have to put off the visit to the Yangpu Bridge.
________ anyone come to my office, please tell them I'm not available before four o’clock.
Had he not come an hour earlier, he___the secret that his mother was always there.