The young man spent as much time as he __ over his lessons.
The tomato is the world's most popular fruit. _______ the pumpkin, botanically speaking it is a fruit, not a vegetable.
He saidhis sister had passed the entrance examination of college and _______ she would go to college in about 20 days.
—How unhappy your roommate looks!—Yes, but he's not willing to tell me what it is _______ is troubling him.
In this district for five months or more of the year, no construction can be done _______ the rainy season makes it impossible.
Everything depends on _______ they will support you about it.