【题目】The factory is usually noisy, ________ it is pretty quiet today.

【题目】Help others, ________ you'll feel happier.

【题目】(2018保定竞秀区二模) Last night I stayed up too late, ________ I'm really sleepy now.

【题目】(2018长春改编) Work hard and be patient, ________ your dream won't come true.

【题目】He kept going on his trip ________ he was very hungry and thirsty in the desert.

【题目】I didn't know the news ________ you told me. Thank you for telling me that.

【题目】Be more careful and more patient, ________ you will make fewer mistakes in the following experiments.

【题目】You can either email us ________ come to our office for your questions.

【题目】Tony used to be a quiet student, ________ now he is active in class.

【题目】Help others in need, ________ they will help you when you are in trouble.