It is known to us that without__ passport, travelling abroad is out of ___question.
I will never forget my experience in Africa, _______ has a great effect on my life.
--- Sorry indeed, I ________ to your wedding if I had been in Beijing.--- Forget it. I know you were out on business.
I was not sure _______ I had the qualification for the job, but I applied for it anyway.
Mo Yan grew up _________ folk tales that had been told for centuries in his hometown.
The children are dirty from head to foot because they ________ in the mud all morning.