At the computer operation test, one is supposed to stay at his own machine, keep his eyes on his screen, ______ to anyone.
– Who would you like to see at the moment? -- The man _____ Mr. Nelson.
With his son _____ , the old man felt unhappy.
It was funny that when _______ Mary began to weep sadly.
Have you ever had a case ________ somebody accused your reporter ______ getting the wrong end of the stick.
---How was the weather then? ---Hardly _____ off the plane when it started to rain.