4. So why not — when even a friendly smile can bring about such a good result?

136. We were excited to learn that the last month’s sales ______ by 30%.

135. You can hardly imagine ____ when he heard the news.

134. The dream ____ we are flying in space has finally been realized.

133. I will pay for ____ provides me with useful information.

132. By the end of this year, they______ a new program in Europe.

131. We ______ building the bridge by the end of next month.

130. The staff members were asked to arrive a few minutes earlier before the meeting______.

129. The business talk______ next week when the CEO of your company comes.

128. In this museum a guided tour ______ for you at no charge.

127. It was only a ______ injury, not at all serious.