In communication, a smile is usually _____ strong sign of a friendly and _____ open attitude.()
the; /
a; an
a; /
the; an
In the past twelve months the research members ______ the effectiveness of many materials in a home building.
Stage fright is a common example of ______ educators call a “lack of confidence” among students. A. that B what C. which D. whose
The weather turned out to be fine yesterday. I ______ the trouble to carry my umbrella with me.
______ with high demand and serious shortage of preschools, the local government is undertaking a major expansion.
Considering his poor health condition, the doctor insisted on his_____ a good rest before going back to work.