--- Did you notice him come into the hall?
--- Sorry, sir. I _______ with my friends online.
| A．was chatting | B．chatted | C．would chat | D．am chatting |
Their school has more than two _____ teachers and _____ students.
| A．hundreds of, thousands of | B．hundred, thousands of |
| C．hundred of, thousand | D．hundreds, thousands of |
The____ you are , the ___ mistakes you will make .
| A．more careful , fewer | B．more careful , less |
| C．more careful , few | D．careful , little |
I won’t leave the classroom until my homework ______.
| A．finishes | B．is finished |
| C．will finish | D．are finished |
_______is possible to happen if you pay attention to safety.
| A．Nothing terrible | B．Something terrible |
| C．Terrible everything | D．Terrible anything |
— Did you go to bed early last night?
—No. I watched a _____ movie, so I didn't go to bed until 11 o’clock.
| A．3-hours | B．3-hours’ |
| C．3-hour’s | D．3-hour |