I felt it hard to keep up with my classmates. But whenever I want to__ __，my teacher always encourages me to work harder.
| A．go on | B．run away |
| C．give up | D．give back |
I _______ my homework while my father ______TV last night.
| A．was doing; watched | B．did; was watching |
| C．did; watched | D．was doing; was watching |
He put the key on the table, but now he can’t find it _______.
| A．nowhere | B．anywhere | C．everywhere | D．somewhere |
When the alien ______ out of the restaurant, Tom ______ the pizza.
| A．came; was eating | B．come; was eating | C．come; ate | D．came; ate |
I _________ at that time last Sunday.
| A．read a book | B．got to Beijing | C．bought a sweater | D．was doing housework |
I met your brother ______ I was walking in the street.
| A．before | B．until | C．after | D．while |