—What are you doing, John? Why stop?
—To be on the safe side, we’d fill up the car now for we _______ run out of gas on the way．
| A．must | B．will | C．might | D．should |
“How long will you work on the farm?” “____ the end of next year.”
| A．In | B．By |
| C．At | D．Since |
“How long will you work on the farm?” “____ the end of next year.”
| A．In | B．By |
| C．At | D．Since |
“When did you become an actor?” “_______ 1995, when I graduated from college.”
| A．After | B．In |
| C．From | D．Since |
4. “How long have you been an actor?” “_______ 1995, when I graduated from college.”
| A．After | B．In |
| C．From | D．Since |
Sometimes our opinions differ _______ what we choose to observe and how we deal with what we’ve observed
| A．which | B．since |
| C．because | D．because of |