The students,__________ at the way the questions were put, didn't know the answers to them.
The number of people invited _________ fifty, but a number of them __________ absent for different reasons.
Someone called me up in the middle of the night, but they hung up_________I could answer the phone.
The WTO can’t live up to its name _________ it doesn’t include a country that is home to one fifth of mankind.
There were dirty marks on her trousers__________she had wiped her hands.
The English play__________my students acted at the New Year’s party was a great success.