Why didn’t you call me this morning?——I ______ call you. I called you all the morning, but I couldn’t ______.
I like koalas. They sleep ______the day, but at night they get up.[ ]
Please call me _____ 235-5680.[ ]
Be quick! The game will begin _________.
The new CRH train between Beijing and Shanghai _______ speed once reached about 350km/h has had a 50 kph speed cut to 300 kph.