They really don’t know how _________ the difficult problem.
| A．to solve | B．solve |
| C．solves | D．solved |
---__________ is it from here to Yangzhou Museum?
--- About 20 minutes by bike.
| A．How long | B．How often |
| C．How far | D．How soon |
--- What will the weather be like tomorrow?
--- It ______ be rainy, cloudy or sunny. Who knows?
| A．must | B．might |
| C．shall | D．should |
---- Could you tell me how to write an application letter?
---- With pleasure. Remember that the letter should be written in the formal _______.
| A．value | B．effect |
| C．mood | D．style |
---Have you heard of Kunming terrorist attack?
---Yes, it happened ________ March 1st, 2014.
| A．on | B．in |
| C．at | D．for |
--- The girl doesn’t like playing _______football .
--- That’s true, but she plays ______ piano well.
| A．the, / | B．/, the |
| C．a, the | D．the, a |