30. — Have you ever been to Australia?— Never, but I have been looking forward _______ such a chance for further study there.
“Be careful, do not stand ___________ to the fire, Jim.” Mrs. Thompson said to her little son.
Several pages were found _________ when the book _________ me.
--- How many students are there in your school? --- There are 2,000 students here __________.
____________ two exams to worry about, I have to work really hard this weekend.
While shopping, people sometimes can't help ________ into buying something they don't really need.