They paid fifty percent of _____ they were able to earn to the state.
No matter how I try to please my boss,he always______with my work,so I’ll have to quit my job.
—Hurry up!Alice and Sue are waiting for you at the school gate.—Oh!I thought they______without me.
A great deal of science and technique has been______since China carried out reform and open policy.
No advertisement so far______can have the same effect as this one.
A healthy life is frequently thought to be______with the open countryside and home-grown food.