`101. C` 

`=>` twice a week -> HTĐ

`=>` S(số ít) `+` Vs/es
`102. A`

`=>` QKĐ `+`  when `+` QKTD

`=>` QKĐ: S `+` V2`/`ed

`=>` QKTD: S `+` was`/`were `+` V-ing
`103. C`

`=>` HTHT:  have `/` has `+`  V3`/`ed
`104. C`

`=>` so far `->` HTHT

`=>` S `+` have `/` has `+` V3`/`ed
`105. A`

`=>` ago `->` QKĐ

`=>` S `+` V2 `/` ed
`106. C`

`=>` HTHT: have `/` has `+` V3 `/` ed
`107. B`

`=>` lately `->` HTHT

`=>`  S `+` have `/` has `+` V3`/`ed
`108. C`

`=>` when`+`  QKĐ, QKĐ

`=>`QKĐ: S `+` V2`/`ed
`=>` QKTD: S `+` was`/`were `+` V-ing
`109. A `

`=>`so far `->` HTHT

`=>`  S `+` have `/` has `+` V3`/`ed 
`110. C`

`=>` at the moment `->` HTTD

`=>` S `+` am `/` is `/` are `+` V`-`ing

When she heard the noise, she went down to the kitchen and turned on the light.

Answer: B. heard; went; turned

John, have you been to the cinema recently?

Answer: B. have you been Tom burnt his hand when he was cooking dinner. Answer: A. burnt Jim is away on holiday.

He hasn't had any problems so far.

Answer: C. haven't had

Everything is going well.  We haven't had any problems so far.

Answer: C. haven't had

Jane left just a few minutes ago

. Answer: A. left

Timson has made 13 films and I think the latest is the best.

Answer: C. has made

Have you seen Robert lately?

Answer: B. Have you seen

When I was a child, I played the violin.

Answer: C. played

He has played for the national team in 65 matches so far.

Answer: A. has played I'm busy at the moment.

I am working on the computer.

Answer: D. working

$\begin{array}{c} \color{#db1616}{\texttt{Muichiro}} \end{array}$