The headmaster will __________ a speech to the visiting foreign guests this afternoon.

27．Don’t you think it essential that every resident of Nanjing___________spare no effort to make contributions to Nanjing 2014 Youth Olympic Games?

Li Hua’s parents hold different opinions on whether they should have ________ child.

Mary often forgets ________ her English book.

You _____ read a book in the sun—it’ll doharm to your eyes．