Mountain climbing ______ be really dangerous at times even though it is challenging and exciting in general.
| A．can | B．should | C．shall | D．must |
The woman teacher hurriedly left the classroom as though ______.
| A．angry |
| B．angrily |
| C．anger |
| D．being angry |
—Please call me at 7：00 tomorrow morning.I'm kind of forgetful.
—Don't worry about that.You'll surely be ______.
| A．informed | B．reminded | C．warned | D．hoped |
Lab workers must wear protective ______.
| A．cloth | B．dress | C．clothing | D．costume |
She could have given us a better impression，but she ______ a very short mini skirt.
| A．wear | B．wears | C．wore | D．is worn |
I looked for my pen for a long time last night，but it ______ in my pocket this morning.How strange!
| A．turned out |
| B．turned on |
| C．turned up |
| D．turned down |