The price of the pants ______ ninety yuan.

The U.S. first lady Michelle Obama, arrived in China on March 20, 2014 for _______ six-day visit, focusing on _______ importance of cultural exchanges.

Food supplies in the earthquake area ________. We must act immediately before there’s none left.

English is difficult _______interesting.

Who can it be that hasn’t handed in his composition?—It ______ be Robinson. He ______ it in yesterday.