1.I am _______ communication with him on this subject

2.I doubt Tom ___________passing the examseven if he tries harder than before.

3.—I have an appointment today.

—Oh well, _________let’s make it another day, shall we?

4.We should be pay special attention to the development of the situation. We should also tell our friends to be careful of it ____________（也）.

5.________ ________ ________ _______ (至于) learning English, he has no superiority.

6.我沿着街道走着，听着音乐。I walked along the street, ________ ________ the music.

7.I’ll do it more carefully ________it will take me hours.

8.It was sunny just now.But______the sky was covered with dark clouds.

9.The robbers __________ and looted (抢劫)the warehouse.（货栈）

10.While in the lab,you should ______the teacher’s ______