No sooner _____ back to the kitchen than the doorbell rang.

Did you find the key _____the door?[ ]

My train will leave _____ ten so I have to get to the station before nine forty.[ ]

.______ pressure the U.S. government put on the Chinese government, China would stick to its own policy of exchange rate.

Yesterday I met Jim. We ____________ each other since we _________ middle school.