—We need to buy some summer clothes, John.—Oh, I never know ________when I'm in the store.
Betweentworowsoftrees_____theteachingbuilding.
Thenumberofpeopleinvited______fifty,butanumberofthem____absentfor differentreasons.
You, who ______ his good friend, should help him get out of trouble.
More than one student _________ read the novels, which _________ written by David.
The boy, rather than his friends, _________ for the accident.