Great changes __________ in our institute in the last few yearsA.have taken placeB.has tak

– It’s our great pleasure to have you visit our company. －－_________________A、Thank yo

In our company, great changes ________ since the new manager came.A．took placeB．take place

We were talking about the American tourist______ we met during our trip to the Great Wall.

Our long _________ with your company has brought great benefits.AimplicationBresistanceC

Scientific experts say the Horn of Africa will______.A．have great climate change in the ne

If times______（变了)，have our ways of thinking changed too？ （change)