— May I speak to Mr. Smith?
— He ______. Can I ______a message?

(单选题)Vickie Weiner is the person who ______. (单选题)According to the text, why was it easier to find host famili (单选题)I ______ use a clock to wake me up because at six o’clock ea (单选题)This restaurant wasn’t ______ that restaurant we went to. (单选题)The manager ______ the workers how to improve the program si (单选题)Tony lent me the money ______ that I’d do as much for him. (单选题)100℃ is the temperature ______ which water will boil. (单选题)What is the author’s main purpose in writing the text? (单选题)What causes the loss of biodiversity according to the text? (单选题)How many plant species known to science are at the risk of e