询问别人的年龄,你应该说: 。A.How old are you? B.How many? C.How are you?
What do you do ______ the weekend? A. on B. in C. at
I _____ helpful, he ______ helpful, too. A. is, am B. am, is C. am, are
They ______ lots of places last Friday. A.visits B.visit C.visited
Lingling is good at ______. A.sing B.singing C.sings
The first thing _____ some bread A. is B. are C.were