He _______ to go to Tsinghua University to study after graduating from high school, so he is working very hard.
They looked disappointed because they didn’t ______ the task on time.
_______ that Marie was able to set up new branches elsewhere.
—I didn’t tell him the news.—Oh, you ought _______.
______ of money spent on the bridge.
Scientists have to work hard to keep ________ with modern discoveries and developments..