It never occurred to humans until the mid-1990s ______ some animals can be cloned.
| A．where | B．that | C．when | D．what |
He talked happily about the teachers and books _______ interested him greatly in the school.
| A．that | B．when | C．who | D．which |
Every one of the girls was looking forward to _______ as an actress.
| A．be chosen | B．choosing | C．being chosen | D．choose |
—Use my umbrella to ______ yourself from the rain, will you?
—That’s very kind of you.
| A．prevent | B．keep | C．rescue | D．protect |
John and I get on well with each other because we share a lot in ______.
| A．each other | B．usual | C．ordinary | D．common |
You don’t want ______ and neither do others.
| A．to make fun of | B．making fun of | C．to be made fun of | D．being made fun of |