In summer, food goes sour easily ________ it isn’t put in the fridge.
| A．unless | B．if | C．until | D．Though |
HaiNan Island is the south of China.
| A．to | B．on | C．at | D．in |
--Excuse me. I want to buy some stamps. Where can I find a post office?
-- I know not far from here. You can easily find.
| A．that, it | B．it, one |
| C．one, it | D．it, that |
--How about magic show?
-- I should say it was success.
| A．the, a | B．the, the |
| C．a, a | D．a , the |
--Remember to ask her to call me back. --!
| A．Never mind | B．That’s right |
| C．Up to you | D．Got it |
No one tells them, so they need our help.
| A．what should they do | B．how should they do |
| C．how to do it | D．what to do it |