We want to encourage students to ________ the running of the college.
A．join B．attend C．participate in D．participate
We didn't know you were in trouble at that time, ________ we would have given you a hand.
A．therefore B．however
C．otherwise D．though
______ surprised the family most was ________ the girl played basketball very well.
A. That; that B. That; what C. What; that D.What; what
_______ in the jungle, the explorer had little hope to find his way out.
A．Leaving B．To be left
C．Having left D．Having been left
Many students urged that the school readingroom ________ open during the vacation.
A．kept B．be kept C．should keep D．was keep
The thief turned the whole house ________ looking for money.
A．upside down B．out front
C．side by side D．down to earth
