－          did you play the piano today?   －For five hours.

Professor Smith, along with his assistant, ________on the project day and night to meet the deadline.

The government’s efforts to cut the homework burden of primary and middle school students _____ mixed reactions

 Neither my wife nor I myself _____ able to persuade my daughter to change her _____.

Clearly, development aid together with food ______ the long-term solution to the problem of poverty.