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【題目】Scientists are trying to find a new ______ to solve the environmental problem.

【題目】In America Thanksgiving Day is on ______ Thursday in November.

【題目】Your ______ are the members of your family, such as your uncle and your aunt.

【題目】This cup is made of ______ china, not ______ plastic.

【題目】— Please tell me ______ for breakfast?

【題目】— How soon will I get to the Grand Canyon?

【題目】When you break the rules, you should ______ to your teacher.

【題目】What a sunny day! We should have a picnic ______ watching TV at home.

【題目】My family always go somewhere interesting ______ the holiday begins.

【題目】Dr Bethune came to China ______ the Chinese people and died for them.