i have been doing
has 是第三人称单数用的,he or she
i has been doing 还是i have been doing
i has been doing 还是i have been doing
英语人气:676 ℃时间:2019-10-19 08:42:37
优质解答
我来回答
类似推荐
猜你喜欢
- 1地球距离太阳的远近会不会影响到地球上的气温?
- 2na2o2与h2o反应的反应方程式中什么是氧化剂,什么事还原剂?
- 3长城站位于中山站的【 】方向
- 4I’m not full.I want another two cakes.
- 5测定匀变速直线运动的加速度实验的相关问题
- 6I feel ___when I stay at home.Because no one plays with me.
- 7多项式除以多项式的法则是什么?
- 8the girls are playing over there.(就划线部分提问) _____are the girls____over there?
- 9从一件小事中得到的启示作文
- 10在一个底面直径为5cm,高为18cm的圆柱形瓶内装满水,再将瓶内的水倒入一个底面直径为6cm,高10cm的圆柱形玻璃杯内,能否完全装下?若装不下,瓶内水面还有多高?若未能装满,求杯内水面距杯口的距离(用方程)