晚上睡觉前,如何向妈妈道声“晚安”A. Good night B. Good evening C. Good morning
There ________ elephants if we don’t protect them now.
Sara kept the secret to ________ and nobody knew about it.
The students in our school have ________ days off and spend _________ time doing their homework.
When it grows ________, it will grow ________ a strong animal.
—________ does John go to school? —He takes the underground.