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【題目】Mary is a pretty girl in our class__________always likes to help others.

【題目】--I hope you can__________the problems and complete the work on time.

【題目】-- Would you like to buy this watch?

【題目】We can make a fire__________the room warm so that we can chat for a while.

【題目】We need clean air and water. So we__________ protect the environmen.

【題目】--What do you think of__________TV show called Readers?

【題目】Doctors all over the world are still trying their best to ____ ways to treat COVID-19.

【題目】There are many beautiful places to visit in Taizhou, ____ Qin Lake National Wetland Park.

【題目】—What’s wrong with my leg, doctor?

【題目】Spring is the best time to go outing. But we need to learn something to guard _____ any possible danger.