While typing, Helen has a habit of stopping ______ to give her long and flowing hair a smooth.
----- What do you think of my paper?----- The _______ part is well written but the latter is just so-so.
I _______ use a clock to wake me up because at six o’clock every morning the train comes by my house.
A number of tests have been conducted to _______ that these drugs have no side effects.
Every year, typhoons and losses ______ lead to are frightening though measures have been taken.
The managers discussed the plan that they would like to see __________ the next year.