.When he was a boy, he used to go there and watch _____.
| A．to repair bicycles | B．bicycles to be repaired |
| C．bicycles being repaired | D．repairing bicycles |
We saw _____farms which were built more than a hundred years ago.
| A．abandoned | B．abandon | C．abandoning | D．to abandon |
She explains English grammar ___clearly _____even I can understand it.
| A．even…if… | B．so…that… | C．as…if… | D．but…and… |
The school year is divided into two semesters, __________is September through December.
| A．the first of which | B．the first of them |
| C．the first of it | D．the first of that |
I am _________down my thoughts about it.
| A．write | B．writes | C．writing | D．wrote |
There are three times __________.
| A．as many girls as boys | B．as many girl as boy |
| C．as many girls as boy | D．as many girl as boys |