I failed in the examination last week and I regret _____________ hard.
| A．not to study | B．not studying | C．have not studied | D．did not study |
. Suddenly everyone stopped talking. It became clear that something unexpected _____. But, for a while, I didn’t know what it was.
| A．has happened | B．is happening | C．happened | D．had happened |
. Mother has been busy packing my belongings, making sure I have everything I need. It feels as if she ____ to college with me.
| A．were going | B．had gone | C．would go | D．has gone |
. While reading, an active reader keeps asking questions that lead to a full understanding of the material _____.
| A．read | B．being read | C．reading | D．to be read |
. I intended to share my experience with a friend, but unluckily ____ couldn’t spare me a minute.
| A．one | B．it | C．who | D．they |
. — How come your hands feel as cold as ice!
— I ____ my bicycle all the way here without my gloves.
| A．was riding | B．ride | C．will ride | D．had ridden |