Question

1.I failed in the final examination last term and only then(

Answer 1

1.D

only引导状语时,主句要用部分倒装语序,把谓语动词的助动词提前.

2.A

keep up with表示跟上,赶上

3.A

as a result表示最后,结果

4.C

be worth doing表示……值得（被）做,doing是用主动的形态表被动的意思.很值得做,用副词well修饰worth.例如：The book is well worth reading.