There was such a long queue for coffee at the interval that we ________ gave up[ ]

My first summer vocation in the high school, _______I spent a fortnight on the farm, is really unforgettable

I don’t like this kind of drink because there’s ____________sugar in it .

Look at the timetable (时刻表)Hurry up! Flight 4026 _______ off at 18:20

There is _____pollution and ____fishes in the river now than 20 years ago.