13.Because they hadn’t booked a room in advance, there were _____ left when they arrived at the hotel.
It’s difficult to ______ the football fans, who were crazy about the victory.
All these foods and clothes must be sent out immediately ______ in time for those who were caught in floods.
She ______ to Africa to study the animals there, even though her family asked her not to.
— Could I ask you a personal question?— Sure, ______.
—I’m going to Thailand this summer holiday.—