_____earth scientists understand how and why earthquakes happen, forecasts are usually inaccurate.
| A．As | B．While | C．Because | D．If |
When I met Becky, she told me that she ______ for an interview the next day.
| A．would go | B．has gone | C．went | D．had gone |
Many high school students wish that they ______ at a top university in the future.
| A．had studied | B．studied | C．have studied | D．could study |
When I was in primary school, I was told that the earth ______around the sun.
| A．had travelled | B．would travel | C．travels | D．travelled |
The professor spoke so fast during the lecture that we couldn’t _____ what he said.
| A．turn out | B．make out | C．carry out | D．leave |
If Becky hadn’t missed the bus, she ______late for the lecture.
| A．would have been | B．wouldn’t have been |
| C．had been | D．wasn’t |