1.B 现在进行时,所以是be +doing .看着某人是:look at sb.听着某人说:listen to sb.
2.B 祈使句的否定:Don't do sth.
3.D 不定式做后置定语.something to drink 一些喝的东西
1.are having现在进行时
2.Are the twins _flying_____(fly)a kite?Yes.Look,they are over there.表明是现在
3.watching How about doing sth.做某事好吗?
about 是介词所以+doing
How much do you want?=how much would_you like_?
加油!