Not until he went abroad to further hisstudy_______ the importance of English.

The fact has worried many scientists _____ the earthis becoming warmer and warmer these years

Because of the dry weather, trees have died in this area and is over 100.

I’m afraid we can’t complete the project on time. Shall we try to get the deadline ________ till the end of this month?[ ]

In order to get started in this career, I am willing to accept any position____I can show my abilities.