A terrible terrorist attack at the train station in Kunming, on March 1, 2014 29 death and more than 140 injuries.
| A．occurred; caused | B．happened; caused |
| C．occurred; causing | D．happened; to cause |
------Thank you ever so much for your timely help.
-----__________.
| A．Glad to hear that | B．With pleasure | C．Think nothing of it | D．All right |
Where we will build the dam has not been decided yet, ______?
| A．will we | B．has it | C．won’t we | D．hasn’t it |
The system is designed to give students easy ______ to the digital resources of the library.
| A．passage | B．way | C．approach | D．access |
One of the most important problems we will have to solve is _______ of students’ learning method.
| A．that | B．this | C．what | D．which |
. The house is nice, but ______ too small for a family of five.
| A．rarely | B．fairly | C．rather | D．pretty |