Seeing their teacher________into the classroom,they stopped________at once.
――How many children are there in your family ? ――So many there used to be, but now I am_______ an only child.
――Where is my pen? I can’t find it anywhere. ――It is just under your nose(鼻子). I do believe it _______ if you are careful enough.
――Li Hua can remember 40 new words in a new way every day. ――_______ it is!
――_______ you like to go with me to the cinema this evening? ――I’d love to, but I have to look after my little brother.
Your parents _______you many things in their lifetime, but you may not realize that until they are gone.