—Were you busy last weekend? —Very. Rather than ____ time playing cards as usual, I devoted every effort to ____ an advertisement. 

_____ other good students, the teacher thinks Hank is _____ student.

_____ by the advances in technology, many farmers have set up wind farms on their land.

When she saw her son liked reading, she did all she could ______ him.

Tom always prefers _________on foot rather than _______ a bike.