—Do you go there by bike ________ by bus?—By bike.
I’m sorry I’m late for work _______ the heavy traffic this morning.
----The number of the tigers is getting __________. ---- I agree _______ you.
The reserve is an important ______ area for the rare red-crowned cranes.
You should speak as loudly as you can _____everyone hear you clearly
I think ____necessary for us _____the birds.