— Happy birthday!— Thank you! It’s the best present I _______ for.

 I felt surprised that anyone of his intelligence   ________  such an easy test.

—Guess what; Yang Yang failed in the maths test .—How         it be？She is second to none in maths.

 —Mr. Smith, why are you always asking me to do the difficult work?—Because you _______ do such a thing and nobody else is fit for it.

Just imagine performing such an opera as Turandot in the Forbidden City---there _____ be a better setting!