Since entry into high school the students have been ____ staying up late in the evening and getting up early in the morning.
finish the difficult task on time, we had to work day and night for weeks.
Mary has been abroad for 6 months. I have written to her but I haven’t had time.
While through the old photos, I thought of many happy days.
The teacher advised Tom to what he saw and what he thought during his trip.
— My watch doesn’t work; I’ll get it . — Why not buy a new one. It’s too old.