2 . When his mother came in, the boy pretended ________ (read). (所给词的适当形式填空)

3 . What seems to be ________（lack）is enough money for the project. （所给词的适当形式填空）

4 . He pretended ________(read) important papers when the boss entered. （所给词的适当形式填空）

5 . When my mother came in, I pretended________ (read) a book.（所给词的适当形式填空）

6 . He pretended ____________ (read) an important document when the boss came in. (所给词的适当形式填空)

7 . Jack pretended _________ (read) when his wife entered the house. (所给词的适当形式填空)

8 . Today we have too many choices of communication through advanced technology, but we seem _______ the joy of communicating face to face.

A．to be losing

B．having lost

C．to be lost

D．losing

9 . She happened ________(shop) in the small town of Anderson when I called her. (所给词的适当形式填空）

10 . The boy pretended ____________ (do) his homework when his father came in.