About 698,000 laptops were sold in China in _ second quarter, 12.1 % increase from a year ago.
| A．a； a | B．the； a | C．the；the | D．a； the |
. I have no idea _______ he left the party without _______ .
| A．why; noticing | B．how; being noticed |
| C．whether; notices | D．that; notice |
This job needs ______ patience and practice, after all, it will become ______ enjoyable experience after weeks.
| A．/ ; the | B．the ; the | C．/ ; an | D．the ；a |
They ______ the train to Beijing．Otherwise, they would have returned home．
| A．need have caught | B．must have caught |
| C．must catch | D．may catch |
His father was the first on the farm ______ against the slave owner．
| A．fought | B．fighting | C．to fight | D．having fought |
As we all know, eating too much fat can ______ heart disease and cause high blood pressure.
| A．add to | B．attend to | C．contribute to | D．apply to |