what we usually do is( )for some information on line.

what we usually do is( )for some information on line.
Alooking Blook Clooked Dlooks
为什么选B，如何解释？
书上说因为是主语从句。to look 省略to，如何解释，急急急

We usually do our homework after school What do you usually do on weekends? what time you finished work usually是什么意思？ what time do you usually get up -What does Mark usually do after school? what do they usually do_________saturday evening we are what we eat We usually [ ] hello [ ] each other when we meet we usually go to school by bus和we usually comes to school by bus what can we do ?