----I’d like to go shopping with you, but I have a meeting _______. ----If you don’t go, ________.
I want to use the same dictionary ______was used yesterday.
They arrived at a farmhouse, in front of ______sat a small boy.
The pen ______he is writing is mine.
This is one of the best films _______.
Some researchers believe that there is no doubt ________ a cure for AIDS will be found.