Is this the reason _______ at the meeting for his carelessness in his work?
| A．he explained | B．what he explained |
| C．how he explained | D．why he explained |
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 |
11. “Do you prefer ________ rather than ________ by bus?” asked my mother.
| A．walking there; going | B．to alk to there; go |
| C．to walk there; go | D．walking to there; going |
10. My brother was born on January, 10th, 1990 ________ it was snowing heavily.
| A．which | B．when | C．in which | D．That |