( )1. It's generous ＿＿them to donate money to UNICEF . They think it important __ ————————them to help children go to school .
A. to ; for B. for ;of C. of ; to D. of ;for
( )2. Tony has much difficulty ________Chinese , so he often asks me ________help .
A. to understand ;with B. understanding ; of
C. to ;understand ;for D. understanding ;for
( )3. You should be strict ________ yourselves and strict _________your work .
A. in ; with B. with ; in C. in ; in D. with ;with
( )4. You look ________.What do you ________?
A. worry; worry about B. worry; worried about
C. worried; worry about D. worried; worried about
