His sister left home in 1998, and_______ ever since.
| A．had not been heard of | B．has not been heard of |
| C．had not heard of | D．has not heard of |
At the news of the earthquake, the soldiers did what they could the victims.
| A．help | B．to help | C．to helping | D．helping |
makes me stressed is the entrance examination is coming nearer and nearer.
| A．It; what | B．What; that | C．What; what | D．That; that |
Tom is the only one of the students whoa scholarship since last year.
| A．has won | B．have won | C．is winning | D．wins |
Allen followed his customer across the yard and stood on the step of the house, two shopping bags.
| A．lifted | B．having lifted | C．to lift | D．lifting |
Our English teacher, having explained to us how to design a project, allowed us a whole week’s preparation and then the class.
| A．to dismiss | B．dismissed | C．dismissing | D．having dismissed. |