Question

【题目】She says that she'll have to close the shop business improves.
A.if
B.or
C.unless
D.because

Answer 1

【答案】C
【解析】if意为“如果”；or意为“或者，否则”；unless意为“除非，如果不”；because意为‘‘因为”。由“she'll have to close the shop”可知，她将不得不关门，除非生意有所好转。故选c。