With many major economic problems ______ to be addressed, there is no point ______the growth rate of this year now.
John wants to be a, so he often helps sick people in the hospital.
Can he work out the maths problem—-I think _____ hard for him to work it out.
Look at the sign. You have to _____ in the library.
Do you know______ she will be in three years—Maybe she will be a doctor.