----Tomorrow is a holiday. Why are you doing your homework?
-----I am doing these exercises now so that I won’t have _____ on Sunday.
| A．it | B．them | C．for | D．to |
__________ to the left at the crossroads, and you will see the railway station on your right.
| A．Turning | B．If you turn | C．Turn | D．Having turned |
Unfortunately, the research was limited __________ increasing economic profits, _________ protecting the environment.
| A．to; other than | B．by; rather than | C．to; rather than | D．by; more than |
We have to realize: boys share activities, _________ girls share feelings.
| A．while | B．when | C．as | D．since |
---- Pity you missed the lecture on nuclear pollution.
---- I _________ it, but was busy preparing for a job interview.
| A．would have attended | B．had attended | C．would attend | D．attended |
The most important thing about my job is ______ I help protect ordinary people from the volcano.
| A．how | B．that | C．what | D．不填 |