Which of the following pair of words contains the same vowel?

(单选题)It was not until mum agreed to take him to the zoo, ______wa (单选题)I found ______ very easy to learn English well if you put yo (单选题)It is generally accepted that ______ boy must learn to stand (单选题)Would you compare and tell the differences between ______ ro (单选题)—I’m sorry for being late, I should have phoned you earlier. (单选题)Mike and his brother, who ______ their homework, were allowe (单选题)—Would you please give some advice on how to improve our eff (单选题)Had it not been for your carelessness, you ______ the drivin (单选题)______ it rain tomorrow, we would have to put off the visit (单选题)How long do you think ______ the car factory launches a new