20、I’m afraid we’ll have to work extra hours, for there are still some problems       ．

A．remaining to settle                                       B．remaining to be settled

C．remained to talk about                                 D．to remain to discuss

19、Mother’s love is true love! She’s never stopped loving you        you become or you do．

A．whichever         B．however          C．whatever           D．whoever

18、---When did you move to Sanya?

---In 2008．But I        in Tibet for 8 years．

A．has worked                                         B．has been worked

C．have been working                               D．worked

17、---Does Rita feel better today?

---Her condition has        improved, but it will be some time before she returns to school．

A．sooner or later                                            B．more or less

C．now and then                                             D．once in a while

16、The moment        John will never forget is       Mr. Smith gave him a lot of valuable advice on how to improve his writing．

A．that; that         B．that; when          C．when; that           D．when; when

15、Mr. Li has some trouble sleeping, so dinking a glass of milk before going to bed every night is his common         ．

A．practice          B．knowledge          C．experience           D．duty

14、---Have you been        ?

---Yeah．As a matter of fact, I’ve been going to the gym for half a year now．

A．carrying out           B．turning out           C．making out          D．working out

13、---How can we reduce CO₂ in our home?

---It’s easy．       off your TV or computers when you’re not using them, and you’ll greatly reduce it．

A．Turn        B．To turn            C．Turning          D．Turned

12、The local government is trying all out to find out who is      the forest fire．

A．to blame for starting                                    B．to blame to start

C．to be blamed for starting                              D．to be blamed to start

11、Nine thousand guests took part in the outdoor ceremony,        that impressed so many people at the White House．

A．that           B．this           C．it          D．one