It was not until nearly a month later ________ I received the manager’s reply．

A．since

B．when

C．as

D．that

It was ________ his mother came in ________ to prepare his lessons．

A．not until; did the boy begin

B．until; that the boy began

C．until; did the boy begin

D．not until; that the boy began

You can’t have this football back ________ you promise not to kick it at my cat again, ”the old man said firmly．

A．until

B．when

C．since

D．as

He found it increasingly difficult to read, ________ his eyesight was beginning to fail．

A．and

B．for

C．but

D．or

Parents should take seriously their children’s requests for sunglasses ________ eye protection is necessary in sunny weather．

A．because

B．though

C．unless

D．if

Jenny was very sad over the loss of the photos she had shot at Canada, ________ this was a memory she especially treasured．

A．when

B．where

C．as

D．if

A typhoon swept across this area with heavy rains and winds ________ strong as 113 miles per hour．

A．too

B．very

C．so

D．as

Nowadays the roles of husband and wife are not as defined as before, ________ especially when both partners work and earn money for the family．

A．clear

B．clearer

C．clearly

D．more clearly

The chairman thought ________ necessary to invite professor Smith to speak at the meeting．

A．that

B．it

C．this

D．him

________ is our belief that improvements in health care will lead to a stronger more prosperous economy．

A．As

B．That

C．This

D．It