The Math problem is too difficult , we really don’t know ________ to do it .
| A．which | B．where | C．what | D．how |
My brother usually the subway to work , but today he goes to work a bus.
| A．by , by | B．takes , by | C．takes , on | D．drives , by |
We students go to school Monday to Friday.
| A．from | B．to | C．with | D．from to |
My home is aboutwalk from here.
| A．twenty minutes | B．twenty-minutes | C．twenty minutes' | D．twenty |
About two＿＿＿＿students in our school come to school in their parent's car.
| A．hundred | B．hundred of | C．hundreds | D．hundreds of |
I usually come to school bike, but sometimes I come to school ＿＿foot.
| A．on, in | B．by, on | C．ride, by | D．take, with |