【題目】If there is something wrong with your computer, you can use __________.

【題目】The battle continued for several hours __________ darkness came on.

【題目】The building was locked, and all of us within felt __________.

【題目】His interest __________ law led him eventually to become a lawyer.

【題目】—__________ is the best way to send an urgent parcel?

【題目】I'd rather __________ half an hour to work than drive a car. Driving less can reduce air pollution.

【題目】—Could you tell me __________ it is from the nearest bank to your office?

【題目】__________ of us is working hard to make our country richer and stronger.

【題目】Betty can’t join us in the card game. She __________ the classroom.

【題目】__________ the temperature is,__________ water turns into steam.