Mark isn’t coming to the concert ______ he has got too much work to do.

I have never seen such a little girl!—Yeah, although she was worried about her parents, she asked in a low ______ voice.

Tommy had had a three-mile drive north _____ he could turn and head back south

Why are the two students standing at the gate of the teachers’office?—They________to each other in class and________.[ ]

Instead of making many excuses you can’t reach your goal,just hold to your dream and never give up.