_______ the difficult maths problem, she has consulted Professor Liu several times.

Now that we’ve discussed out problem, are people happy with the decisions ?[ ]

The black people thus lay onthehardwoodenboards,_________standup.

It’s _______ hot here. We can’t stay here for a long time.

Mr Smith, I often hear people say IOC, would you please tell me what IOC _____? [ ]