15. ---Do you know the girl in red? ---She seems to ______ me at last month’s party. But I’m not sure.
Mark Zuckerberg is the founder of the site Facebook, ______ you can have a look at each other’s pictures.
I tried every means to reach my goal but failed. So desperate ______ that I almost lost heart.
We need to _____ how we are going to get there.
Mum disliked ______ when I behaved badly in front of the guests.
The pain is gone after weeks of the operation, but the scar _____.