﹣May I use your computer， Mr． Black？

﹣____．I will use my iPad instead．（　　）

A．Go aheadB．Thank you

C．Sorry， you can'tD．I'm afraid not

﹣What is the ____ of your excellent spoken English？

﹣Practice makes perfect!（　　）

A．resultB．influenceC．dutyD．secret

﹣The fridges are on sale in the supermarket today．

﹣Really？ Let's go and buy ____ for our new kitchen．（　　）

A．oneB．itC．thatD．them

﹣ I'm afraid I might forget to buy the bread after work．

﹣Don't worry． I will ____ you then．（　　）

A．noticeB．allowC．remindD．promise

Before the sun ____ ，we need to get to the top of the mountain．（　　）

A．setB．setsC．is settingD．will set