A lot of language learning,________ has been discovered, is happening in the first year of life, so parents should talk much to their children during that period.
I’ve just read an excellent book of Moyan’s, ___________ you cannot afford to miss.
I had just settled in the new place and didn’t know ____________________.
In fact, I wonder _________ my efforts were all in vain.
Cloning plants is straightforward while cloning animals is _____________ more complicated.
The doctor recommended that you ____________ swim after eating a large meal.