It ___ have been Tom that parked the car here , as he is the only one with a car.A may B can C must D should
______ the crisis of economy getting more and more serious, the government is searching for ways to improve people’s life.
Each of us is likely to develop a personal _______ for certain types of entertainment.
The Chinese economy is still doing well _______ the current financial crisis.
A team of nurses ________ the doctor in performing the operation on the boy wounded in the earthquake.
---What on earth are the police busy with? ---They have been looking into how the plane crash _______.