It is difficult for us to learn a lesson in life ______ we’ve actually had that lesson.
| A． until | B．after | C．since | D．when |
I don’t think Susan will be sad but I’ll go and comfort her ______ she is.
| A．in case | B．even though | C．as if | D．unless |
China Business Daily reported the 60% discounts on some Beijing-shanghai flights have now slipped back to 20% _______ one day in advance.
| A．when books | B．when to book | C．when booking | D．when booked |
With so many people ______ around her, the girl felt very nervous and grasped her mother’s hand tightly.
| A．standing | B．having stood | C．stood | D．stand |
It’s reported that Nest Chat allowsusers to block others when they want to avoid _______.
| A．to be disturbed | B．to disturb | C．being disturbed | D．disturbing |
To tell the truth, I would rather that I ____ the pain instead of you. You don’t know how worried I was.
| A．took | B．had taken | C．have taken | D．should have taken |