It is said that dogs will keep you___for as long as you want when you are feeling lonely.
举一反三
- If you travel alone, you will feel lonely for a long time.
- You may borrow the book ______ you keep it clean. A: when B: unless C: as long as D: after
- You may borrow my book___________ you promise to keep it clean. A: so long as B: when C: because
- If you want to keep fit and slim, you can ______.
- If you want to keep __________ , you’d better exercise regularly.