Nathalie suggested the problem worth paying attention ______ at the meeting.
| A．to be discussed | B．to been discussed |
| C．being discussed | D．be discussed |
16. I ________ an invitation from one of my friends, but I have no idea ________ it or not.
| A．received; whether to accept | B．accepted; whether to receive |
| C．got; if to accept | D．got; if I accepted |
15. He ________ his doctor’s care ________ he is quite well again.
| A．owes it to; what | B．owes to; that | C．owes them to; that | D．owes it to; that |
14. Yesterday we went to a park ________ is newly built, ________ we had a very good time.
| A．where; that | B．in which; that | C．which; where | D．that; which |
13. –Just now I called home but nobody answered.
--Oh, sorry. I ________.
| A．must have fallen asleep | B．must fall asleep | C．can’t been asleep | D．must be asleep |
12. Mr Black has two sons, ________ are fond of collecting stamps.
| A．all of whom | B．all of them | C．both of them | D．both of whom |