A horrible thought _________ him when he was waiting for Tom in the airport: what if the plane from Malaysia had been hijacked（劫持）?
| A．attacked | B．struck | C．beat | D．occurred |
You ________ come to his office. Our boss won’t be back until next week.
| A．haven’t to | B．won’t have got to | C．have got to | D．have not got to |
I have made great progress ________ his help. Which of the following is not correct?
| A．with | B．because of | C．as a result of | D．because |
It was the first time ________ I ________ face to face with a thunder storm.
| A．when / had come | B．that / have come | C．when / came | D．that / had come |
The little boy felt grateful ________ the coach for his letting him ________ the game.
| A．for / join in | B．to / to join in | C．with / join | D．to / join in |
The chairman asked many questions ________ the education 
of the homeless children in that area.
| A．concerned | B．concerning | C．to concern | D．having concerned |