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Obesity _____ a serious health problem.

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Although progress  _______, we are still a long way from achieving gender equality worldwide.

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In sub-Saharan African countries, investments _______ in education, skill training and health care to form a better future for adolescent girls and their families.

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Many kinds of fruits and vegetables ................ at the floating market in Can Tho.

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Peter was so sad because he _____ to Lan’s birthday party last night.  

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A lot of flowers _____ in Da Lat throughout the year.

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The University of Oxford _______  among the top five universities in the world.