After the earthquake, the president _____ a three-day period of mourning, the first-ever event of its kind for ordinary people.
| A．suffered | B．declared | C．confirmed | D．informed |
We won’t go to the park if it ______ tomorrow.
| A．is snowing | B．will snow | C．snows | D．snowed |
Jack is the most intelligent man____ I’ve ever met.
| A．that | B．what | C．which | D．where |
While______ in Scotland, he made friends with the native there.
| A．working | B．worked | C．he works | D．he is working |
--- Have you really been to visit the Bird’s Nest in Beijing?
---- I ______ it last summer vacation.
| A．do visited | B．do visit | C．did visited | D．did visit |
Ten minutes had been made full ____ of ____ the problem.
| A．using; studying | B．use; to study |
| C．to use; to study | D．use; studying |