-- What can I do for you, Madam? --I’d like ________.
The newly built school canteen(餐厅) is big enough to hold two ________ students at lunch time.
Every year lots of trees ________ to make our country more beautiful.
How kind you are! You always do what you can ________ me.
---I have finished my homework already, Mum. --- When ________ you ________ it?
Lucy is ________ girl of the twin sisters.