______(44)
A.the
B.that
C.an
D.a

______(45)
A.because
B.however
C.if
D.unless

All forms of exercise must be started__________.
A.quickly
B.gradually
C.strenuously
D.violently

People with back problems might go cycling because__________.
A.it enables them to carry the weight of their body on their feet
B.it helps them to relieve their backache
C.it helps to make their backs become stronger
D.it does not make them carry the weight of their body on their feet

Which of the following is NOT included in the advantages of cycling?
A.Giving you a stronger heart
B.Increasing you strength and energy
C.Making you look younger
D.Giving you better muscles

A.phoned
B.jumped
C.composed
D.loved

A.digest
B.biologist
C.curriculum
D.certificate

A.optimistic
B.enthusiast
C.education
D.personality

Strong actions that can easily be seen are considered to be big, obvious__________signals.
A.verbal
B.non- verbal
C.tongue
D.oral

I am really__________in the way he talks, but the way he behaves.
A.interest
B.interested
C.interesting
D.interestingly