Sometimes the police are not absolutely sure that someone has committed a crime, but ______ him of having done it.
| A．doubt | B．inspect |
| C．suspect | D．charge |
Helen was much kinder to her youngest son than to the others, ______, of course, made the others envy him.
| A．who | B．which | C．what | D．that |
_____to reach them on the phone, we sent an email instead.
| A．Fail | B．Failed | C．To fail | D．Having failed |
He let me repeat his instructions_____ sure that I understood what was _____ after he went away.
| A．to make; to be done | B．making; doing | C．to make; to do | D．making; to do |
— It’s the classroom! So you ______ know eating is not allowed here.
— Oh, sorry.
| A．need | B．will | C．may | D．must |
—You don’t look well． Are you ill?
—No, the mid-term exam is coming and Ireading until midnight．
| A．stayed up | B．am staying up | C．have stayed up | D．will stay up |