the new schedule, school teachers must______each class on time, instead of adding extra lessons

It is he often fails in the exams makes his parents worried about him.—— So, he has to work whole- heartedly.

An e-book is usually much______ than an ordinary paper book.

The play________next month reflects many of the values of nineteenth century England. [ ]

Would you like to go to see the wedding ceremony?—-No, I wouldn’t, for the tickets are ______ be expensive.