277. If you want to get there quickly, you'd better take the track in the forest. The underlined word means ____.
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..