The technical cooperation and cultural __________ between the two countries are daily on the increase.
| A．expenses | B．exchanges | C．exception | D．extension |
He will come to call on you the moment he ______his painting.
| A．will finish | B．finished |
| C．has finished | D．had finished |
He was inspired to start again ________ he had failed.
| A．where | B．in which | C．when | D．what |
—I am thinking of the test tomorrow. I am afraid I cannot pass this time.
—_________! I am sure you will make it.
| A．Go ahead | B．Good luck | C．No problem | D．Cheer up |
It took the police a long time to find some evidence. The new evidence led to ____________.
| A．the robber having caught |
| B．catch the robber |
| C．the robber being caught |
| D．the robber to be caught |
The flowers his friend gave him will die unless every day.
| A．water | B．watering | C．watered | D．to water |