—Can you help me with this problem?—It's beyond my __________.I didn't work it out, either.

To our great ________,Geoffrey’s illness proved not to be as serious as we had feared.

All the students are looking forward to the first _________ to pass the College Entrance Examination.

As President Xi Jinping put it in Moscow on Saturday, China’s development creates more ______ than threats.

Now that he has missed his ________, he’ll have to wait for the next round.