A successful scientist needs _____ if he wants to make hypothesis (假设) of how processes work and how events take place.
Would you like to ______ us? We are going to _____ the school’s 20th anniversary celebration.
The audience was _____ very young children so there was a lot of noise while the concert was going on.
The lion is considered the king of the forest , for it is a(n)________ of courage and power.
She wanted to know _________.
--- Mike, what did our monitor say just now? --- Every boy and every girl as well as the teachers who _____ to visit the museum _____ asked to be at the school gate before 6:30 in the morning.