More and more people choose to shop in a supermarket as it offers a great _____ of goods.
| A．variety | B．mixture |
| C．extension | D．combination |
Only when I left my parents for Italy ______ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
He rushed as fast as he could, ______not to be late for class.
| A．to hope | B．being hoped | C．hope | D．hoping |
Nobody believed a 92-year-old man could run a marathon_______he passed the finishing line. People of all ages can challenge themselves.
| A．if | B．since | C．until | D．unless |
Harry is feeling uncomfortable. He _______too much at the party last night.
| A．could drink | B．should drink |
| C．would have drunk | D．must have drunk |
I have no idea what _____ while I was asleep.
| A．has happened | B．could happen | C．had happened | D．happened |