You can never imagine what great difficulty I had ________ his parents.
—I’ll help you prepare for the party on Wednesday. —Please don’t _______. My sisters have promised to help me.
Nowadays, the graduate who has a good _______ of English is more likely to succeed in job hunting.
Sir, do you have anything _______ this afternoon? If there is nothing to do, I wonder if I can ask for leave.
_______ the rapid growth of short messages sent by mobile phones, the increasing number of criminal cases appeared through short messages.
He cooked a great meal to _______ the help of his neighbors in finding his lost little daughter.