Don’t give up regardless of difficulty and failure,______ you ‘ll never achieve your goals．
A．and B．but C．or D．so
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
