I couldn’t do my homework with all that noise ________.
| A．going on | B．goes on | C．went on | D．to go on |
He is always helping people without expecting anything _____.
| A．in common | B．in turn | C．in danger | D．in return |
It is known to us that lions and tigers _____ the cat family.
| A．are belonging to | B．belonged to | C．belong to | D．are belonged to |
The special clothes are _____ for the children who are disabled.
| A．designed | B．planned | C．changed | D．expected |
I’d like a room _____ window looks out over the sea.
| A．that | B．in which | C．whose | D．which |
He pretended __________when his mother stepped into the room..
| A．to study | B．studying | C．to be studying | D．to have studied |