Jack wasn’t saying anything，but the teacher smiled at him________he had done something very clever.
A．as if B．in case C．while D．though
The time he has devoted in the past 10 years________ the disabled is now considered________ of great value.
A．to help；being B．to helping；to be
C．to help；to be D．helping；being
________in the newspaper，I didn’t notice what was happening.
A. Having buried B. Burying
C. Buried D. Being buried
It’s important to learn to take a positive attitude____life when you are ___trouble.
A．to；under B．of；in
C．to；in D．with；in
The winning in the 100meter butterfly gives the American swimmer Michael Phelps the seventh gold medal in Beijing，________the record set by American legend Mark Spitz at the 1972 Munich Games.
A．equaling B．equaled
C．to equal D．being equaled
—He seems________ tired to do it.
—But I am only________ glad to do it.
A．very；too B．extremely；too
C．too；too D．very；very
