To their disappointment, they found the lecture given by the professor difficult__________.
His strong love for his country is _______ in his recently published poems.
He ______ busy yesterday, or he ______ you with your experiment.
—Can you come to attend our party tonight?-- Sorry, but I do wish I _________.
The newly-published book is written _________ for children, which is also popular with most parents.
_______ from the top of the towel, I find the city beautiful.