By 17:30, ______ was almost closing time, nearly all the paintings had been sold.
| A．which | B．when | C．what | D．that |
Would you like Helen _____ you since you have some difficulty?
| A．helping | B．to help | C．has helped | D．help |
Your idea surprised me, it is a(n) _____.
| A．idea surprised | B．surprised idea |
| C．surprising idea | D．idea surprising |
The murderer was brought in, with his hands _____ behind his back.
| A．being tied | B．having tied | C．to be tied | D．tied |
The scientists were waiting to see the problem _____.
| A．settle | B．to settle | C．settled | D．settling |
—Good morning. Can I help you?
—I’d like to have this package _____, madam.
| A．be weighed | B．to be weighed | C．to weigh | D．weighed |