Steps must be taken ______this kind of disaster will never happen again.
A. because B. even if C. as D. so that
Please keep me informed_______ the change of your address as soon as possible.
A. of B. for C. with D. by
One of the most important questions they had to consider was _____of public health.
A. what B. this C. that D. which
The lady walked around the shops,______ an eye out for bargains.
A. keep B. kept C. keeping D. to keep
I go _____to the stadium when there’s a game. But usually I watch it on TV.
A. typically B. anxiously C. frequently D. occasionally
—Can you give some advice on what I said just now?
---Sorry. My mind ______.
A. is wandering B. was wandering C. has wandered D. had wandered
