I will ________ more effort in my studies this term.

Where did you find the professor who made the speechyesterday— It was in the hall_______ the students often have ameeting

The black box is a necessary device on an airplane, which records its speed, direction and whether everything on the airplane______ normally

These tax laws, which are intended for domestic companies, do not ________ to foreign companies.

Even if your suggestions are ，at least you have tried yourbest．