This ______ of culture between Europeans and the Romany led to many nations taking action against them, even banning Romany groups from entering.
| A．collision | B．switch |
| C．surplus | D．dimension |
His teacher was angry ____ him ____ his being late.
| A．at,with | B．at,for | C．with,for | D．with,about |
She felt disappointed when she found out they had gone swimming____ her.
| A．but | B．except | C．except for | D．without |
We left Xi' an _.___ a very hot summer afternoon.
| A．on | B．in | C．during | D．by |
The teacher is busy ____ correcting papers.
| A．for | B．in | C．on | D．of |
The teacher is busy ____ teaching.
| A．with | B．for | C．on | D．of |