3. Their responsibilities = __ on them during training. A inspired B enforced C impressed D excited 4. We have to __ these problems now and find some solutions. A battle B attack C invade D resist

The correct answers are:<br /><br />3. **B. enforced** <br /> * The sentence implies that responsibilities were put upon them during training. "Enforced" means to impose something by authority, which fits the context.<br /><br />4. **B. attack**<br /> * The sentence suggests a direct and forceful approach to dealing with the problems. "Attack" means to confront and try to overcome something, which is the most suitable word in this context. <br /><br />**Explanation:**<br /><br />* **3. Responsibilities** are usually imposed or put upon someone, not inspired, impressed, or excited. <br />* **4. Problems** are often tackled head-on, not battled, invaded, or resisted. "Attack" implies a proactive and direct approach to solving them. <br />