It’s not how much we do but how much love we put into what we do _____ benefits our work most.

The man tried several times to start the car, and he succeeded .

________Bob take part in designing the energy saving houses?— All right.It’s said that he has rich experience of this. [ ]

The roots of such plants can easily ________ water and guarantee the growth of the plants.[ ]

When he walked __________ my desk, he knocked my books __________ the floor.