1．He studied hard every day，________the exam.
A．aim at passing B．aiming at passing
C．aiming passing D．aim to passing
解析： 句意为：他每天刻苦学习，目的是想通过考试。aim at目的是……，其后接doing。
答案： B
2．Owing to lack of enough markets，investment and manpower，the company had to________its business.
A．contact B．contract
C．disappear D．avoid
解析： 句意为：由于缺乏足够的市场、投资和人力，这家公司不得不缩小它的经营范围。contact联系；contract (使)收缩；disappear消失；avoid避免。
答案： B
