—What have you learned from your experience in England?
—Well, meeting people from another culture ______ be very difficult.
| A．can | B．must |
| C．shall | D．should |
Entering the room, I found Mary _______ at the desk and _______ a letter.
| A．seated; wrote | B．sitting; written | C．seating; writing | D．seated; writing |
I took my driving license with me on holiday, _______ I wanted to hire a car.
| A．in case | B．even if | C．ever since | D．if only |
Some parents are just too protective. They want to _______ their kids from every kind of danger, real or imagined.
| A．spot | B．warn | C．shelter | D．assist |
The sunlight is white and blinding _______ hard-edged shadows on the ground.
| A．throwing | B．being thrown | C．to throw | D．to be thrown |
He is always full of _______ as though he never knew tiredness.
| A．strength | B．power | C．force | D．energy |