.–What made her so sad ?
--- ___ she failed in the exam.
| A．That | B．Because | C．As | D．Since |
.---- My grandfather walks five miles every morning.
-----Really? No wonder he looks so ______.
| A．intelligent | B．enthusiastic | C．nervous | D．energetic |
He walked directly towards her, and spoke to her in a low voice to avoid _____ by others.
| A．to hear | B．hearing | C．to be heard | D．being heard |
----I have never used the computer for shopping.Is it hard to use?
----No, it’s simple. You can follow the ____ carefully.
| A．introduction | B． instructions | C．description | D．corrections |
_____ all my teachers, Mr. Moore is the one who impresses me most.
| A．At | B．On | C．To | D．Of |
Hurry up!The train ______. You know it ______ at 8:30 am.
| A．leaves; leaves | B．is leaving; is leaving | C．leaves; is leaving | D．is leaving; leaves |