He was born in a musical family, but he cannot play any ______.
| A．equipment | B．instrument |
| C．invention | D．instruction |
I am willing to do whatever my country requires _______ me?
| A．on | B．for | C．of | D．to |
Compared with the nervousness of driving in the rain or snow, it is ______ to sit in a train without any worry of bad weather.
| A．more tired | B．less tiring | C．less tired | D．even more tiring |
Many experts believe that teachers’ development is _______ the key to better education lies.
| A．that | B．what | C．where | D．which |
Her husband and she are now at work on a new dictionary ______ next year.
| A．to publish | B．being published | C．published | D．to be published |
The judge made the final decision after listening to the opinions of each party ______.
| A．having involved | B．to be involved |
| C．involving | D．involved |