1. The kid ran ______ fast as to catch up with his elder sister.
A. quite B. very C. so D. too
2. The scientist is known to ______ on the problem for a couple of years.
A. have been working B. be working C. be worked D. work
3. I ______ the hypothesis that eyebrows may indicate your identity.
A. favor B. admire C. assist D. follow
4. We have to reduce our costs due to our ______ budget.
A. intense B. loose C. extreme D. tight
5. If you are going through a financial crisis, one ______ to get the money you need is a loan.
A. motivation B. selection C. objective D. alternative