We all like the park _______ we visited last week.
I feel so excited! At this time tomorrow, I ________ by camel with local guides in Northern Africa.
I’m trying to lose weight because I _______ my figure.
Some amazing people _______ our world for the better in the past 100 years.
_______ was a struggle for me to remember all the strange faces and new names.
Mountain climbing _______ be tiring and many people feel sick as the atmosphere gets thinner.