As a host, you shouldn ’ t keep the guests _______ so long. （2.5分）
举一反三
- You may borrow the book （） you keep it clean. A: such as B: so as to C: so long as D: as for
- I am sorry( keep )_______ you waiting for so long .
- If you ________________________ (work) carefully, you shouldn't have made so many mistakes.
- Which of the following sentences indicates POSSIBILITY? A: Lightning can be dangerous. B: You can't keep the book for so long. C: Can you pass the salt? D: You can forget about your holiday.
- Fillin eachblank with "catch", "keep", "talk", or "make" in the word's proper form.I'm sorry to have ____ you waiting so long.