Linda went to a party with a girl, _____ favorite hobby is collecting stamps.
| A．who | B．whom | C．whose | D．which |
Schools in the east tend to be better equipped, ________ those in the west are relatively poor.
| A．as | B．while | C．when | D．but |
The teacher and writer, as well as many guests ________ invited to the party held yesterday.
| A．is | B．were | C．are | D．was |
He walked _________ the bridge, pushed his way ________ the crowd of people and soon came to a hut.
| A．across; across | B．over; through |
| C．over; into | D．across; through |
His words puzzled me so much that I had a hard time trying to ______ what he really meant.
| A．make the most of | B．make sense of |
| C．make for | D．make up |
The fact has worried many scientists_______ the earth is becoming warmer and warmer these days.
| A．what | B．which | C．when | D．That |