The government must be very _____ about setting policies and make no decision until they are quite sure it is the right one.
A. particular B. concerned C. cautious D. certain
She says that she'll have to close the shop ________ business improves.
A. if B. unless C. after D. when
While ______ himself in the newspaper in a cafe , he got his pocket picked.
A．having buried B．buried
C．burying D．to be buried
— Can you explain ____ you have been late for school several times this term?
— Sorry, but it is the first time that I have been late this week.
A.why it is that B．how it is that
C．why is it that D．how is it that
Nowadays it seems to some of us that it is feeling, not just money, that is what really ________.
A. counts B. stays C. means D. grows
When doing my homework,________.
A.I heard the doorbell ring B.the doorbell rang
C.my mother came in D.my mother was cooking
