—I’m going to the United States. —How long ______ you ______ in the United States?
Could you give me a hand __________from the car, please?
--I'm told that John had another car accident this morning. --I believe not. He _________so careless.
The Bunsen Burner is so named because it is thought ___________ by Robert Bunsen.
---Spacecraft “Discovery” has failed in the course of launch. ----_______? They have been preparing for the test.
--I didn't know this was a one-way street, officer. -----__________________.