The secretary worked late into the night, ______ a long speech for the president.
Could I speak to __________ is in charge of International Sales, please?
—What do you think of the performance today?—Great! __________ but a musical genius could perform so successfully.
To save class time, our teacher has ___ students do half of the exercises in class and complete the other half for our homework.
The book is of great value. __________ can be enjoyed unless you digest it.
He has made a lot of films, but __________ good ones.