______ the police thought he was the most likely one, since they had no exact proof about it, they could not arrest him.
| A．Although | B．As long as | C．If only | D．As soon as |
In the near future, more advances in the robot technology __________ by scientists.
| A．are making |
| B．are made |
| C．will make |
| D．will be made |
—When __________ again?
—When she __________, I'll let you know.
| A．she comes ； come |
| B．will she come ； will come |
| C．she comes ； will come |
| D．will she come ； comes |
The plane __________ at 3:00.
| A．took off |
| B．is taking off |
| C．takes off |
| D．will take off |
Let's keep to the point or we __________ any decisions.
| A．will never reach |
| B．have never reached |
| C．never reach |
| D．never reached |
—Tom is so joyful that he smiles at everyone.
—So __________ you if you win the first prize in the exam.
| A．to |
| B．are |
| C．did |
| D．will |