【正文】
lever ____ this question. you to ask B. you ask C. of you ask D. for you to ask ( )2. It usually ____ an hour to do this work . But I ____ two hours doing it yesterday. A. takes。 spent C. spends 。 spent ( )3. ____ important meeting it is! A. What B. What a C. What an D. How an ( )4. The teacher often encourages us ____ the failure. A. not to be afraid B. not to be afraid of C. don’t be afraid D. don’t be afraid of ( )5. An important language can open the door____ the world. A. to B. of C. in D. on A B C B A