根據短文和圖片內容，選擇正確的答案．
A：Can I help you？
B：Oh，yes．How much is this T-shirt？
A：It's only ＄29.50．
B：Really？Is it on sale？
A：Yes．It's usually ＄45.00．But only at the weekends，everything is at a very good price．
B：OK．I'll take two T-shirts for my twin sons．
A：What colour do they like？
B：Blue．
A：Oh，I'm so sorry．We don't have any blue ones．How about the green ones？
B：All right．Here's the money．
A：Thanks．
（注：＄"美元"，美國貨幣的符號）

（1）Two sweaters are

C

C

on Monday．
A． ＄28.00
B． ＄45.00
C． ＄90.00
（2）The meaning of the phrase"on sale"is

A

A

．
A．減價銷售
B．正常營業
C．非賣品
（3）Maybe（也許） the story happened

A

A

．
A．on Saturday
B．on Monday
C．on Wednesday
（4）At last Jim bought two

B

B

for his sons．
A．blue sweaters
B．green T-shirts
C．blue T-shirts
（5）Mary bought three

C

C

on Sunday here．They were ＄60.00．
A．sweaters
B．T-shirts
C．skirts