. Someone in the crowd called out his name, but he couldn’t see ______.
This cake is very sweet. You _____ a lot of sugar in it.
He paid for a seat, when he ______ have entered free.
— The woman biologist stayed in Africa studying wild animals for 13 years before she returned. — Oh, dear ! She ______ a lot of difficulties !
Helen ______ go on the trip with us, but she isn’t quite sure yet.
The World Wide Web is sometimes jokingly called the World Wide Wait because it ______ be very slow.