—I thought you ______ for vacation tomorrow.
—I had planned to, but I have a very important meeting to attend tomorrow.
| A．will leave | B．are leaving | C．have left | D．were leaving |
— Could you meet me at the airport?
— I'd like to，but I'm afraid I ______ a very important meeting when you return.
| A．am attending | B．was attending |
| C．will be attending | D．will have attended |
The science of computer, ______ rapid progress has been made in recent years，plays a very important role in our daily life.
| A．from which | B．for which |
| C．with which | D．to which |
—John is said to have _____ missing since last week. Has he gone somewhere?
— Not really. He_______ his newly-bought apartment.
| A．gone, has decorated | B．been, was decorating |
| C．done, decorated | D．been, has been decorating |
— It’s a long time ______I saw you last.
— And what is a pity now that it will be a long time______ we see each other again.
| A．before; since | B．since; when |
| C．when; before | D．since; before |
In order to attract more online shoppers on Double-Eleven Day, the owners of Taobao promised that they would have those ordered goods _____ to their homes in less than 3 days.
| A．to send | B．sending | C．sent | D．send |