Not only he but also his friends_______ eager to help those who lost their homes in the earthquake.
Do you know the person with __________ he always chatted online?—Yes, one of his QQ friends.
Would you like to go to the concert with me tonight?–I’d love to, but of us two has tickets. Do you have some?
The old pen is broken, I’d like ______ one to write with.
The doctor said he _______ an operation yet.