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

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

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

4 . 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

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

6 . The girl was supposed ______ (work), but his father found her enjoying herself at a party.

7 . When I went in , she pretended_________(read) her textbook attentively.

8 . When the boss came in, the workers pretended _________ (work) hard on their machines. （用所给单词适当形式填空）

9 . He is said ________________ (write) the novel now. (所给词的适当形式填空）

10 . She pretended_________ (listen) carefully, but in fact her mind has already wandered away. (所给词的正确形式填空)