用括号中所给单词的正确形式填空。 1. For children, ______ (clean) their bedrooms themselves is a good habit. 2. Thanks for ______ (invite) me to your home for dinner. 3. Maria, could I use your MP4 ______ (play)? 4. Could you please clean the ______ (live) room? 5. The girl is old enough ______ (make) her bed.