WeChat Pay（微信支付）makes our life convenient．We can buy things _______ we don't take any money．（ ）
A．unlessB．becauseC．even ifD．so that
A marathon was held in Yancheng ____________21st April， which drew 12，000 runners．（ ）
A．onB．inC．atD．by
Yancheng， ________energetic city， has set up trade relations with lots of countries and areas．（ ）
A．aB．anC．theD．/
Sorry，___________． What do you mean by saying "look out"？
I asked you "to be careful"， not "to look outside"（ ）
A．I can't hear youB．I can't see clearly
C．I don't notice youD．I don't follow you
Does Aunt Jane enjoy ____________？
Yes，She has three dogs，two cats，four birds，and some goldfish in her house．（ ）
A．keeping petsB．collecting dolls
C．visiting the zooD．working on the farm
I learnt to swim when I was six．I ___________ by my mother．（ ）
A．am taughtB．was taught
C．will be taughtD．have taught