I like travelling alone. Icanstaylonger______ Iwish, or just keepmovingalong. 

Anger is good for you, ____ you control it properly, according to new psychology research.

Progress so far has been very good. ______, we are sure that the project will be completed on time.

Professor Li always allows his students to voice their opinions in class, ______ sometimes their opinions are not sound.

You’d better do ___ I told you.