某ⅡA族元素是该族元素中在自然界最广泛存在的元素,常以化合物F的形式存在,其单质A可发生一系列如图所示的化学反应。下列说法正确的是
一What did you do this Dragon Boat Festival?
—I the boat races on TV and read books.
A.watchB.watched
C.am watchingD.will watch
You can't make progress in math learning you work harder.
A.ifB.afterC.unlessD.because
一 ?
一Yes.I'd like a bowl of beef noodles.
A.Can you help me
B.How was your day
C.May I take your order
D.What would you like to drink
Taichi,part of Chinese culture,is an exercise which helps people improve in health.
A.themselvesB.ourselvesC.itselfD.myself
一A nice T﹣shirt! is it?
一It's 50 yuan.
A.How longB.How farC.How muchD.How old