--Why were you not at the concert last night?--I _______a close game between Seattle and Miami.A. watched B. had watchedC. have been watching D was watching
__________ fired, your health care and other benefits will not be immediately cut off.
—How’s your tour around the North Lake? Is it beautiful? —It ________ be, but it is now heavily polluted.
John promised his doctor he _____ not smoke and he has never smoked ever since.
According to the air traffic rules, you ___ switch off your mobile phone before boarding.
When I was young, I was told that I ______ play with matches