____ we can finish our task on time really depends on our efforts. [ ]

Mike, what did our monitor say just now?—Every student as well as teachers who are to visit the museum _____ asked to be at the school gate before 6:30 in the morning.

I won’t buy this iPhone unless the price ________ to under 2,000 yuan

The cars give off a great deal of waste gas in the streets. — Yes. But I’m sure something will be done to ___ air pollution.

His promise ________ he would give away half of the year’s income to the disabled turned out a lie, ________ made the public feel cheated.