用适当的连词填空。
【小题1】They lost their way in the forest and __________ made matters worse was __________ night began to fall.
【小题2】__________ has helped to save the drowning girl is worth praising.
【小题3】It is said __________ Peter will have a chance to travel abroad next month.
【小题4】__________ Yang Liwei ate his food in space is __________ we want to know.
【小题5】__________ he lost the bike worried him a lot.
【小题6】I read about it in some book or other, does it matter __________ it was?
【小题7】__________ of you answers the question correctly will be given a prize.
【小题8】__________ he didn’t come yesterday is unknown.
【小题9】__________ we will go tomorrow hasn’t been decided yet.
【小题10】__________ will be sent to help them is very important.