.--- I was lucky the win a gold medal in the800-metre race.
--- You ____ through hard training.
| A．must go | B．should go | C．must have gone | D．should have gone. |
______I used to go mountain—climbing every summer .
| A．at a time | B．at one time | C．At times | D．At the same time |
Liping works very hard at his lessons .He didn’t get the first place in the exam ,_______.
| A．though | B．yet | C．however | D．although |
John is good at his job but she seems to ______confidence.
| A．lack | B．short | C．be short | D．lack in |
Though ______money ,his parents managed to send him to university.
| A．lacked | B．lacking of | C．lacking ( vt.) | D．lacked in |
---Is there any flight to Tokyo today ?---I think there __, for the weather is too bad.
| A．mustn’t be | B．mightn’t be | C．needn’t be | D．can’t be |