---- I am not able to solve some practical problems using Newton’s First Law of Motion.
----That’s just _______ most of the students are puzzled easily.
| A．what | B．why | C．how | D．where |
The way you think of_____ our living conditions sounds reasonable.
| A．improve | B．to improve | C．improving | D．improvement |
It is his cleverness, not his strenth, ____ defeated his rival.
| A．that | B．which | C．what | D．who |
Mr Smith, ____ of the____ speech, started to read a novel.
| A．tired, boring | B．tiring, bored |
| C．was tired, bored | D．was tiring, boring |
There are more than three thousand students in my school, most of____ from the country.
| A．that | B．which | C．whom | D．them |
---Will $200____?
----I’m afraid not. We need at least 50 more dollars.
| A．count | B．satisfy | C．fit | D．do |