Do you think the reason ________ he gave is believable?
. So seriously _____ in the accident that he was sent to hospital at once.
Though he had tried to climb to the top of the mountain several times, he didn't__________________.
I'd also like to _____ you on your good work in these two years.
I wondered what difficulty he had _________ the plan?
—I' m sorry, but I didn’t mean__________ out your secret.—But you know, letting out one's secret means________ one' s feelings.