It was not until nearly a month later _________I received the managers reply.

A. since                            B. when                     C. as                               D. that

--Can you tell me ______ I can do with the broken computer?

-- Sorry, you’d better ask an expert ______ to deal with it.

A. how ; what       B. what ; how       C. how ; how           D. what ; what

— When shall we go planting trees in the hill?

—______ it begins to rain, so they don’t need watering.

   A. Not until          B. While                C. Till                   D. Unless

In the thrilling activity of bungee jumping, ________most matters is courage rather than strength.

   A. it        B. that        C. as       D. what

If you want to do the experiment again, you had better be more careful ________ you made a mistake.

A. when      B. why       C. where      D. that

Jack fell grateful to his teacher _______ he couldn’t find words to express it .

A．a(chǎn)s if         B．even though         C．so that        D．now that

______ well prepared you are, you still need a lot of luck in mountain climbing.

A. However           B. Whatever          C. No matter                      D. Although

People are puzzled ________ they read the book.

   A. the first time    B. at the first time    C. for the first time    D. at first

“Sorry, sorry…,” he whispered, ________ talking to himself.

   A. while    B. even if    C. as if     D. when

“ If you get the highest mark in your class, I’ll give you ______ you want,” said the mother.

 A. however     B. whatever       C. wherever      D. whenever